/src/libvsmbr/libcfile/libcfile_file.c
Line | Count | Source |
1 | | /* |
2 | | * File functions |
3 | | * |
4 | | * Copyright (C) 2008-2026, Joachim Metz <joachim.metz@gmail.com> |
5 | | * |
6 | | * Refer to AUTHORS for acknowledgements. |
7 | | * |
8 | | * This program is free software: you can redistribute it and/or modify |
9 | | * it under the terms of the GNU Lesser General Public License as published by |
10 | | * the Free Software Foundation, either version 3 of the License, or |
11 | | * (at your option) any later version. |
12 | | * |
13 | | * This program is distributed in the hope that it will be useful, |
14 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | | * GNU General Public License for more details. |
17 | | * |
18 | | * You should have received a copy of the GNU Lesser General Public License |
19 | | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
20 | | */ |
21 | | |
22 | | #include <common.h> |
23 | | #include <memory.h> |
24 | | #include <narrow_string.h> |
25 | | #include <system_string.h> |
26 | | #include <types.h> |
27 | | #include <wide_string.h> |
28 | | |
29 | | #if defined( HAVE_SYS_STAT_H ) |
30 | | #include <sys/stat.h> |
31 | | #endif |
32 | | |
33 | | #if defined( HAVE_ERRNO_H ) |
34 | | #include <errno.h> |
35 | | #endif |
36 | | |
37 | | #if defined( HAVE_FCNTL_H ) |
38 | | #include <fcntl.h> |
39 | | #endif |
40 | | |
41 | | #if defined( WINAPI ) |
42 | | #include <io.h> |
43 | | #endif |
44 | | |
45 | | #if defined( WINAPI ) && !defined( __CYGWIN__ ) |
46 | | #include <share.h> |
47 | | #endif |
48 | | |
49 | | #if defined( HAVE_SYS_IOCTL_H ) |
50 | | #include <sys/ioctl.h> |
51 | | #endif |
52 | | |
53 | | #if defined( WINAPI ) |
54 | | #include <winioctl.h> |
55 | | |
56 | | #elif defined( HAVE_CYGWIN_FS_H ) |
57 | | #include <cygwin/fs.h> |
58 | | |
59 | | #elif defined( HAVE_LINUX_FS_H ) |
60 | | /* Required for Linux platforms that use a sizeof( u64 ) |
61 | | * in linux/fs.h but have no typedef of it |
62 | | */ |
63 | | #if !defined( HAVE_U64 ) |
64 | | typedef size_t u64; |
65 | | #endif |
66 | | |
67 | | #include <linux/fs.h> |
68 | | |
69 | | #else |
70 | | |
71 | | #if defined( HAVE_SYS_DISK_H ) |
72 | | #include <sys/disk.h> |
73 | | #endif |
74 | | |
75 | | #if defined( HAVE_SYS_DISKLABEL_H ) |
76 | | #include <sys/disklabel.h> |
77 | | #endif |
78 | | |
79 | | #endif |
80 | | |
81 | | #if defined( HAVE_UNISTD_H ) |
82 | | #include <unistd.h> |
83 | | #endif |
84 | | |
85 | | #include "libcfile_definitions.h" |
86 | | #include "libcfile_file.h" |
87 | | #include "libcfile_libcerror.h" |
88 | | #include "libcfile_libcnotify.h" |
89 | | #include "libcfile_system_string.h" |
90 | | #include "libcfile_types.h" |
91 | | #include "libcfile_winapi.h" |
92 | | |
93 | | #if defined( HAVE_IOCTL ) || defined( WINAPI ) |
94 | | #define LIBCFILE_HAVE_IO_CONTROL 1 |
95 | | #endif |
96 | | |
97 | | /* Creates a file |
98 | | * Make sure the value file is referencing, is set to NULL |
99 | | * Returns 1 if successful or -1 on error |
100 | | */ |
101 | | int libcfile_file_initialize( |
102 | | libcfile_file_t **file, |
103 | | libcerror_error_t **error ) |
104 | 0 | { |
105 | 0 | libcfile_internal_file_t *internal_file = NULL; |
106 | 0 | static char *function = "libcfile_file_initialize"; |
107 | |
|
108 | 0 | if( file == NULL ) |
109 | 0 | { |
110 | 0 | libcerror_error_set( |
111 | 0 | error, |
112 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
113 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
114 | 0 | "%s: invalid file.", |
115 | 0 | function ); |
116 | |
|
117 | 0 | return( -1 ); |
118 | 0 | } |
119 | 0 | if( *file != NULL ) |
120 | 0 | { |
121 | 0 | libcerror_error_set( |
122 | 0 | error, |
123 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
124 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
125 | 0 | "%s: invalid file value already set.", |
126 | 0 | function ); |
127 | |
|
128 | 0 | return( -1 ); |
129 | 0 | } |
130 | 0 | internal_file = memory_allocate_structure( |
131 | 0 | libcfile_internal_file_t ); |
132 | |
|
133 | 0 | if( internal_file == NULL ) |
134 | 0 | { |
135 | 0 | libcerror_error_set( |
136 | 0 | error, |
137 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
138 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
139 | 0 | "%s: unable to create file.", |
140 | 0 | function ); |
141 | |
|
142 | 0 | goto on_error; |
143 | 0 | } |
144 | 0 | if( memory_set( |
145 | 0 | internal_file, |
146 | 0 | 0, |
147 | 0 | sizeof( libcfile_internal_file_t ) ) == NULL ) |
148 | 0 | { |
149 | 0 | libcerror_error_set( |
150 | 0 | error, |
151 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
152 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
153 | 0 | "%s: unable to clear file.", |
154 | 0 | function ); |
155 | |
|
156 | 0 | goto on_error; |
157 | 0 | } |
158 | | #if defined( WINAPI ) |
159 | | internal_file->handle = INVALID_HANDLE_VALUE; |
160 | | #else |
161 | 0 | internal_file->descriptor = -1; |
162 | 0 | #endif |
163 | 0 | *file = (libcfile_file_t *) internal_file; |
164 | |
|
165 | 0 | return( 1 ); |
166 | | |
167 | 0 | on_error: |
168 | 0 | if( internal_file != NULL ) |
169 | 0 | { |
170 | 0 | memory_free( |
171 | 0 | internal_file ); |
172 | 0 | } |
173 | 0 | return( -1 ); |
174 | 0 | } |
175 | | |
176 | | /* Frees a file |
177 | | * Returns 1 if successful or -1 on error |
178 | | */ |
179 | | int libcfile_file_free( |
180 | | libcfile_file_t **file, |
181 | | libcerror_error_t **error ) |
182 | 0 | { |
183 | 0 | libcfile_internal_file_t *internal_file = NULL; |
184 | 0 | static char *function = "libcfile_file_free"; |
185 | 0 | int result = 1; |
186 | |
|
187 | 0 | if( file == NULL ) |
188 | 0 | { |
189 | 0 | libcerror_error_set( |
190 | 0 | error, |
191 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
192 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
193 | 0 | "%s: invalid file.", |
194 | 0 | function ); |
195 | |
|
196 | 0 | return( -1 ); |
197 | 0 | } |
198 | 0 | if( *file != NULL ) |
199 | 0 | { |
200 | 0 | internal_file = (libcfile_internal_file_t *) *file; |
201 | |
|
202 | | #if defined( WINAPI ) |
203 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
204 | | #else |
205 | 0 | if( internal_file->descriptor != -1 ) |
206 | 0 | #endif |
207 | 0 | { |
208 | 0 | if( libcfile_file_close( |
209 | 0 | *file, |
210 | 0 | error ) != 0 ) |
211 | 0 | { |
212 | 0 | libcerror_error_set( |
213 | 0 | error, |
214 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
215 | 0 | LIBCERROR_IO_ERROR_CLOSE_FAILED, |
216 | 0 | "%s: unable to close file.", |
217 | 0 | function ); |
218 | |
|
219 | 0 | result = -1; |
220 | 0 | } |
221 | 0 | } |
222 | 0 | *file = NULL; |
223 | |
|
224 | 0 | memory_free( |
225 | 0 | internal_file ); |
226 | 0 | } |
227 | 0 | return( result ); |
228 | 0 | } |
229 | | |
230 | | /* Opens a file |
231 | | * Returns 1 if successful or -1 on error |
232 | | */ |
233 | | int libcfile_file_open( |
234 | | libcfile_file_t *file, |
235 | | const char *filename, |
236 | | int access_flags, |
237 | | libcerror_error_t **error ) |
238 | 0 | { |
239 | 0 | static char *function = "libcfile_file_open"; |
240 | 0 | uint32_t error_code = 0; |
241 | |
|
242 | 0 | if( libcfile_file_open_with_error_code( |
243 | 0 | file, |
244 | 0 | filename, |
245 | 0 | access_flags, |
246 | 0 | &error_code, |
247 | 0 | error ) != 1 ) |
248 | 0 | { |
249 | 0 | libcerror_error_set( |
250 | 0 | error, |
251 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
252 | 0 | LIBCERROR_IO_ERROR_OPEN_FAILED, |
253 | 0 | "%s: unable to open file.", |
254 | 0 | function ); |
255 | |
|
256 | 0 | return( -1 ); |
257 | 0 | } |
258 | 0 | return( 1 ); |
259 | 0 | } |
260 | | |
261 | | #if defined( WINAPI ) |
262 | | |
263 | | #if ( WINVER >= 0x0600 ) && ( WINVER < 0x0602 ) |
264 | | |
265 | | #define FileAlignmentInfo 0x11 |
266 | | |
267 | | typedef struct _FILE_ALIGNMENT_INFO FILE_ALIGNMENT_INFO; |
268 | | |
269 | | struct _FILE_ALIGNMENT_INFO { |
270 | | ULONG AlignmentRequirement; |
271 | | }; |
272 | | |
273 | | #endif /* ( WINVER >= 0x0600 ) && ( WINVER < 0x0602 ) */ |
274 | | |
275 | | /* Opens a file |
276 | | * This function uses the WINAPI function for Windows XP (0x0501) or later, |
277 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
278 | | * Returns 1 if successful or -1 on error |
279 | | */ |
280 | | int libcfile_file_open_with_error_code( |
281 | | libcfile_file_t *file, |
282 | | const char *filename, |
283 | | int access_flags, |
284 | | uint32_t *error_code, |
285 | | libcerror_error_t **error ) |
286 | | { |
287 | | libcfile_internal_file_t *internal_file = NULL; |
288 | | static char *function = "libcfile_file_open_with_error_code"; |
289 | | DWORD file_io_access_flags = 0; |
290 | | DWORD file_io_creation_flags = 0; |
291 | | DWORD file_io_shared_flags = 0; |
292 | | DWORD flags_and_attributes = 0; |
293 | | size_t filename_length = 0; |
294 | | ssize_t read_count = 0; |
295 | | |
296 | | if( file == NULL ) |
297 | | { |
298 | | libcerror_error_set( |
299 | | error, |
300 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
301 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
302 | | "%s: invalid file.", |
303 | | function ); |
304 | | |
305 | | return( -1 ); |
306 | | } |
307 | | internal_file = (libcfile_internal_file_t *) file; |
308 | | |
309 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
310 | | { |
311 | | libcerror_error_set( |
312 | | error, |
313 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
314 | | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
315 | | "%s: invalid file - handle value already set.", |
316 | | function ); |
317 | | |
318 | | return( -1 ); |
319 | | } |
320 | | if( filename == NULL ) |
321 | | { |
322 | | libcerror_error_set( |
323 | | error, |
324 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
325 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
326 | | "%s: invalid filename.", |
327 | | function ); |
328 | | |
329 | | return( -1 ); |
330 | | } |
331 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
332 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
333 | | { |
334 | | file_io_access_flags = GENERIC_WRITE | GENERIC_READ; |
335 | | file_io_creation_flags = OPEN_ALWAYS; |
336 | | file_io_shared_flags = FILE_SHARE_READ; |
337 | | } |
338 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
339 | | { |
340 | | file_io_access_flags = GENERIC_READ; |
341 | | file_io_creation_flags = OPEN_EXISTING; |
342 | | |
343 | | /* FILE_SHARE_WRITE is set to allow reading files that are |
344 | | * currently being written FILE_SHARE_READ alone does not suffice |
345 | | */ |
346 | | file_io_shared_flags = FILE_SHARE_READ | FILE_SHARE_WRITE; |
347 | | } |
348 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
349 | | { |
350 | | file_io_access_flags = GENERIC_WRITE; |
351 | | file_io_creation_flags = OPEN_ALWAYS; |
352 | | file_io_shared_flags = FILE_SHARE_READ; |
353 | | } |
354 | | else |
355 | | { |
356 | | libcerror_error_set( |
357 | | error, |
358 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
359 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
360 | | "%s: unsupported access flags: 0x%02x.", |
361 | | function, |
362 | | access_flags ); |
363 | | |
364 | | return( -1 ); |
365 | | } |
366 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
367 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
368 | | { |
369 | | file_io_creation_flags = CREATE_ALWAYS; |
370 | | } |
371 | | if( error_code == NULL ) |
372 | | { |
373 | | libcerror_error_set( |
374 | | error, |
375 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
376 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
377 | | "%s: invalid error code.", |
378 | | function ); |
379 | | |
380 | | return( -1 ); |
381 | | } |
382 | | filename_length = narrow_string_length( |
383 | | filename ); |
384 | | |
385 | | if( filename_length > 4 ) |
386 | | { |
387 | | if( ( filename[ 0 ] == '\\' ) |
388 | | && ( filename[ 1 ] == '\\' ) |
389 | | && ( filename[ 2 ] == '.' ) |
390 | | && ( filename[ 3 ] == '\\' ) ) |
391 | | { |
392 | | /* Ignore \\.\F:\ which is an alternative notation for F: |
393 | | */ |
394 | | if( ( filename_length < 7 ) |
395 | | || ( filename[ 5 ] != ':' ) |
396 | | || ( filename[ 6 ] != '\\' ) ) |
397 | | { |
398 | | internal_file->is_device_filename = 1; |
399 | | internal_file->use_asynchronous_io = 1; |
400 | | } |
401 | | } |
402 | | } |
403 | | flags_and_attributes = FILE_ATTRIBUTE_NORMAL; |
404 | | |
405 | | if( internal_file->use_asynchronous_io != 0 ) |
406 | | { |
407 | | flags_and_attributes |= FILE_FLAG_OVERLAPPED; |
408 | | } |
409 | | #if ( WINVER <= 0x0500 ) |
410 | | internal_file->handle = libcfile_CreateFileA( |
411 | | (LPCSTR) filename, |
412 | | file_io_access_flags, |
413 | | file_io_shared_flags, |
414 | | NULL, |
415 | | file_io_creation_flags, |
416 | | flags_and_attributes, |
417 | | NULL ); |
418 | | #else |
419 | | internal_file->handle = CreateFileA( |
420 | | (LPCSTR) filename, |
421 | | file_io_access_flags, |
422 | | file_io_shared_flags, |
423 | | NULL, |
424 | | file_io_creation_flags, |
425 | | flags_and_attributes, |
426 | | NULL ); |
427 | | #endif |
428 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
429 | | { |
430 | | *error_code = (uint32_t) GetLastError(); |
431 | | |
432 | | switch( *error_code ) |
433 | | { |
434 | | case ERROR_ACCESS_DENIED: |
435 | | libcerror_error_set( |
436 | | error, |
437 | | LIBCERROR_ERROR_DOMAIN_IO, |
438 | | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
439 | | "%s: access denied to file: %" PRIs_SYSTEM ".", |
440 | | function, |
441 | | filename ); |
442 | | |
443 | | break; |
444 | | |
445 | | case ERROR_FILE_NOT_FOUND: |
446 | | case ERROR_PATH_NOT_FOUND: |
447 | | libcerror_error_set( |
448 | | error, |
449 | | LIBCERROR_ERROR_DOMAIN_IO, |
450 | | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
451 | | "%s: no such file: %" PRIs_SYSTEM ".", |
452 | | function, |
453 | | filename ); |
454 | | |
455 | | break; |
456 | | |
457 | | default: |
458 | | libcerror_system_set_error( |
459 | | error, |
460 | | LIBCERROR_ERROR_DOMAIN_IO, |
461 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
462 | | *error_code, |
463 | | "%s: unable to open file: %" PRIs_SYSTEM ".", |
464 | | function, |
465 | | filename ); |
466 | | |
467 | | break; |
468 | | } |
469 | | return( -1 ); |
470 | | } |
471 | | #if defined( LIBCFILE_HAVE_IO_CONTROL ) |
472 | | if( internal_file->is_device_filename != 0 ) |
473 | | { |
474 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
475 | | internal_file, |
476 | | FSCTL_ALLOW_EXTENDED_DASD_IO, |
477 | | NULL, |
478 | | 0, |
479 | | NULL, |
480 | | 0, |
481 | | error_code, |
482 | | error ); |
483 | | |
484 | | if( read_count == -1 ) |
485 | | { |
486 | | libcerror_error_set( |
487 | | error, |
488 | | LIBCERROR_ERROR_DOMAIN_IO, |
489 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
490 | | "%s: unable to query device for: FSCTL_ALLOW_EXTENDED_DASD_IO.", |
491 | | function ); |
492 | | |
493 | | #if defined( HAVE_DEBUG_OUTPUT ) |
494 | | if( libcnotify_verbose != 0 ) |
495 | | { |
496 | | if( ( error != NULL ) |
497 | | && ( *error != NULL ) ) |
498 | | { |
499 | | libcnotify_print_error_backtrace( |
500 | | *error ); |
501 | | } |
502 | | } |
503 | | #endif |
504 | | libcerror_error_free( |
505 | | error ); |
506 | | } |
507 | | if( libcfile_internal_file_determine_block_size( |
508 | | internal_file, |
509 | | error ) != 1 ) |
510 | | { |
511 | | libcerror_error_set( |
512 | | error, |
513 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
514 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
515 | | "%s: unable to determine block size.", |
516 | | function ); |
517 | | |
518 | | return( -1 ); |
519 | | } |
520 | | } |
521 | | #endif /* defined( LIBCFILE_HAVE_IO_CONTROL ) */ |
522 | | |
523 | | if( libcfile_internal_file_get_size( |
524 | | internal_file, |
525 | | &( internal_file->size ), |
526 | | error ) != 1 ) |
527 | | { |
528 | | libcerror_error_set( |
529 | | error, |
530 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
531 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
532 | | "%s: unable to retrieve size.", |
533 | | function ); |
534 | | |
535 | | return( -1 ); |
536 | | } |
537 | | internal_file->access_flags = access_flags; |
538 | | internal_file->current_offset = 0; |
539 | | |
540 | | return( 1 ); |
541 | | } |
542 | | |
543 | | #elif defined( HAVE_OPEN ) |
544 | | |
545 | | /* Opens a file |
546 | | * This function uses the POSIX open function or equivalent |
547 | | * Returns 1 if successful or -1 on error |
548 | | */ |
549 | | int libcfile_file_open_with_error_code( |
550 | | libcfile_file_t *file, |
551 | | const char *filename, |
552 | | int access_flags, |
553 | | uint32_t *error_code, |
554 | | libcerror_error_t **error ) |
555 | 0 | { |
556 | | #if defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) |
557 | | struct stat file_statistics; |
558 | | #endif |
559 | 0 | libcfile_internal_file_t *internal_file = NULL; |
560 | 0 | static char *function = "libcfile_file_open_with_error_code"; |
561 | 0 | int file_io_flags = 0; |
562 | |
|
563 | 0 | if( file == NULL ) |
564 | 0 | { |
565 | 0 | libcerror_error_set( |
566 | 0 | error, |
567 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
568 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
569 | 0 | "%s: invalid file.", |
570 | 0 | function ); |
571 | |
|
572 | 0 | return( -1 ); |
573 | 0 | } |
574 | 0 | internal_file = (libcfile_internal_file_t *) file; |
575 | |
|
576 | 0 | if( internal_file->descriptor != -1 ) |
577 | 0 | { |
578 | 0 | libcerror_error_set( |
579 | 0 | error, |
580 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
581 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
582 | 0 | "%s: invalid file - descriptor value already set.", |
583 | 0 | function ); |
584 | |
|
585 | 0 | return( -1 ); |
586 | 0 | } |
587 | 0 | if( filename == NULL ) |
588 | 0 | { |
589 | 0 | libcerror_error_set( |
590 | 0 | error, |
591 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
592 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
593 | 0 | "%s: invalid filename.", |
594 | 0 | function ); |
595 | |
|
596 | 0 | return( -1 ); |
597 | 0 | } |
598 | 0 | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
599 | 0 | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
600 | 0 | { |
601 | 0 | file_io_flags = O_RDWR | O_CREAT; |
602 | 0 | } |
603 | 0 | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
604 | 0 | { |
605 | 0 | file_io_flags = O_RDONLY; |
606 | 0 | } |
607 | 0 | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
608 | 0 | { |
609 | 0 | file_io_flags = O_WRONLY | O_CREAT; |
610 | 0 | } |
611 | 0 | else |
612 | 0 | { |
613 | 0 | libcerror_error_set( |
614 | 0 | error, |
615 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
616 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
617 | 0 | "%s: unsupported access flags: 0x%02x.", |
618 | 0 | function, |
619 | 0 | access_flags ); |
620 | |
|
621 | 0 | return( -1 ); |
622 | 0 | } |
623 | 0 | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
624 | 0 | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
625 | 0 | { |
626 | 0 | file_io_flags |= O_TRUNC; |
627 | 0 | } |
628 | 0 | if( error_code == NULL ) |
629 | 0 | { |
630 | 0 | libcerror_error_set( |
631 | 0 | error, |
632 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
633 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
634 | 0 | "%s: invalid error code.", |
635 | 0 | function ); |
636 | |
|
637 | 0 | return( -1 ); |
638 | 0 | } |
639 | 0 | #if defined( O_CLOEXEC ) |
640 | | /* Prevent the file descriptor to remain open across an execve |
641 | | */ |
642 | 0 | file_io_flags |= O_CLOEXEC; |
643 | 0 | #endif |
644 | | #if defined( __MINGW32__ ) |
645 | | /* Ensure the file descriptor is opened in binary mode |
646 | | */ |
647 | | file_io_flags |= O_BINARY; |
648 | | #endif |
649 | 0 | internal_file->descriptor = open( |
650 | 0 | filename, |
651 | 0 | file_io_flags, |
652 | 0 | 0644 ); |
653 | |
|
654 | 0 | if( internal_file->descriptor == -1 ) |
655 | 0 | { |
656 | 0 | *error_code = (uint32_t) errno; |
657 | |
|
658 | 0 | switch( *error_code ) |
659 | 0 | { |
660 | 0 | case EACCES: |
661 | 0 | libcerror_error_set( |
662 | 0 | error, |
663 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
664 | 0 | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
665 | 0 | "%s: access denied to file: %" PRIs_SYSTEM ".", |
666 | 0 | function, |
667 | 0 | filename ); |
668 | |
|
669 | 0 | break; |
670 | | |
671 | 0 | case ENOENT: |
672 | 0 | libcerror_error_set( |
673 | 0 | error, |
674 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
675 | 0 | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
676 | 0 | "%s: no such file: %" PRIs_SYSTEM ".", |
677 | 0 | function, |
678 | 0 | filename ); |
679 | |
|
680 | 0 | break; |
681 | | |
682 | 0 | default: |
683 | 0 | libcerror_system_set_error( |
684 | 0 | error, |
685 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
686 | 0 | LIBCERROR_IO_ERROR_OPEN_FAILED, |
687 | 0 | *error_code, |
688 | 0 | "%s: unable to open file: %" PRIs_SYSTEM ".", |
689 | 0 | function, |
690 | 0 | filename ); |
691 | |
|
692 | 0 | break; |
693 | 0 | } |
694 | 0 | return( -1 ); |
695 | 0 | } |
696 | | #if defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) |
697 | | if( fstat( |
698 | | internal_file->descriptor, |
699 | | &file_statistics ) != 0 ) |
700 | | { |
701 | | libcerror_error_set( |
702 | | error, |
703 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
704 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
705 | | "%s: unable to retrieve file statistics.", |
706 | | function ); |
707 | | |
708 | | return( -1 ); |
709 | | } |
710 | | if( S_ISBLK( file_statistics.st_mode ) ) |
711 | | { |
712 | | if( libcfile_internal_file_determine_block_size( |
713 | | internal_file, |
714 | | error ) != 1 ) |
715 | | { |
716 | | libcerror_error_set( |
717 | | error, |
718 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
719 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
720 | | "%s: unable to determine block size.", |
721 | | function ); |
722 | | |
723 | | return( -1 ); |
724 | | } |
725 | | } |
726 | | #endif /* defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) */ |
727 | | |
728 | 0 | if( libcfile_internal_file_get_size( |
729 | 0 | internal_file, |
730 | 0 | &( internal_file->size ), |
731 | 0 | error ) != 1 ) |
732 | 0 | { |
733 | 0 | libcerror_error_set( |
734 | 0 | error, |
735 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
736 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
737 | 0 | "%s: unable to retrieve size.", |
738 | 0 | function ); |
739 | |
|
740 | 0 | return( -1 ); |
741 | 0 | } |
742 | 0 | internal_file->access_flags = access_flags; |
743 | 0 | internal_file->current_offset = 0; |
744 | |
|
745 | 0 | return( 1 ); |
746 | 0 | } |
747 | | |
748 | | #else |
749 | | #error Missing file open function |
750 | | #endif |
751 | | |
752 | | #if defined( HAVE_WIDE_CHARACTER_TYPE ) |
753 | | |
754 | | /* Opens a file |
755 | | * Returns 1 if successful or -1 on error |
756 | | */ |
757 | | int libcfile_file_open_wide( |
758 | | libcfile_file_t *file, |
759 | | const wchar_t *filename, |
760 | | int access_flags, |
761 | | libcerror_error_t **error ) |
762 | | { |
763 | | static char *function = "libcfile_file_open_wide"; |
764 | | uint32_t error_code = 0; |
765 | | |
766 | | if( libcfile_file_open_wide_with_error_code( |
767 | | file, |
768 | | filename, |
769 | | access_flags, |
770 | | &error_code, |
771 | | error ) != 1 ) |
772 | | { |
773 | | libcerror_error_set( |
774 | | error, |
775 | | LIBCERROR_ERROR_DOMAIN_IO, |
776 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
777 | | "%s: unable to open file.", |
778 | | function ); |
779 | | |
780 | | return( -1 ); |
781 | | } |
782 | | return( 1 ); |
783 | | } |
784 | | |
785 | | #if defined( WINAPI ) |
786 | | |
787 | | /* Opens a file |
788 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
789 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
790 | | * Returns 1 if successful or -1 on error |
791 | | */ |
792 | | int libcfile_file_open_wide_with_error_code( |
793 | | libcfile_file_t *file, |
794 | | const wchar_t *filename, |
795 | | int access_flags, |
796 | | uint32_t *error_code, |
797 | | libcerror_error_t **error ) |
798 | | { |
799 | | libcfile_internal_file_t *internal_file = NULL; |
800 | | static char *function = "libcfile_file_open_wide_with_error_code"; |
801 | | DWORD file_io_access_flags = 0; |
802 | | DWORD file_io_creation_flags = 0; |
803 | | DWORD file_io_shared_flags = 0; |
804 | | DWORD flags_and_attributes = 0; |
805 | | size_t filename_length = 0; |
806 | | ssize_t read_count = 0; |
807 | | |
808 | | if( file == NULL ) |
809 | | { |
810 | | libcerror_error_set( |
811 | | error, |
812 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
813 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
814 | | "%s: invalid file.", |
815 | | function ); |
816 | | |
817 | | return( -1 ); |
818 | | } |
819 | | internal_file = (libcfile_internal_file_t *) file; |
820 | | |
821 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
822 | | { |
823 | | libcerror_error_set( |
824 | | error, |
825 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
826 | | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
827 | | "%s: invalid file - handle value already set.", |
828 | | function ); |
829 | | |
830 | | return( -1 ); |
831 | | } |
832 | | if( filename == NULL ) |
833 | | { |
834 | | libcerror_error_set( |
835 | | error, |
836 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
837 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
838 | | "%s: invalid filename.", |
839 | | function ); |
840 | | |
841 | | return( -1 ); |
842 | | } |
843 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
844 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
845 | | { |
846 | | file_io_access_flags = GENERIC_WRITE | GENERIC_READ; |
847 | | file_io_creation_flags = OPEN_ALWAYS; |
848 | | file_io_shared_flags = FILE_SHARE_READ; |
849 | | } |
850 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
851 | | { |
852 | | file_io_access_flags = GENERIC_READ; |
853 | | file_io_creation_flags = OPEN_EXISTING; |
854 | | |
855 | | /* FILE_SHARE_WRITE is set to allow reading files that are |
856 | | * currently being written FILE_SHARE_READ alone does not suffice |
857 | | */ |
858 | | file_io_shared_flags = FILE_SHARE_READ | FILE_SHARE_WRITE; |
859 | | } |
860 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
861 | | { |
862 | | file_io_access_flags = GENERIC_WRITE; |
863 | | file_io_creation_flags = OPEN_ALWAYS; |
864 | | file_io_shared_flags = FILE_SHARE_READ; |
865 | | } |
866 | | else |
867 | | { |
868 | | libcerror_error_set( |
869 | | error, |
870 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
871 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
872 | | "%s: unsupported access flags: 0x%02x.", |
873 | | function, |
874 | | access_flags ); |
875 | | |
876 | | return( -1 ); |
877 | | } |
878 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
879 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
880 | | { |
881 | | file_io_creation_flags = CREATE_ALWAYS; |
882 | | } |
883 | | if( error_code == NULL ) |
884 | | { |
885 | | libcerror_error_set( |
886 | | error, |
887 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
888 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
889 | | "%s: invalid error code.", |
890 | | function ); |
891 | | |
892 | | return( -1 ); |
893 | | } |
894 | | filename_length = wide_string_length( |
895 | | filename ); |
896 | | |
897 | | if( filename_length > 4 ) |
898 | | { |
899 | | if( ( filename[ 0 ] == (wchar_t) '\\' ) |
900 | | && ( filename[ 1 ] == (wchar_t) '\\' ) |
901 | | && ( filename[ 2 ] == (wchar_t) '.' ) |
902 | | && ( filename[ 3 ] == (wchar_t) '\\' ) ) |
903 | | { |
904 | | /* Ignore \\.\F:\ which is an alternative notation for F: |
905 | | */ |
906 | | if( ( filename_length < 7 ) |
907 | | || ( filename[ 5 ] != (wchar_t) ':' ) |
908 | | || ( filename[ 6 ] != (wchar_t) '\\' ) ) |
909 | | { |
910 | | internal_file->is_device_filename = 1; |
911 | | internal_file->use_asynchronous_io = 1; |
912 | | } |
913 | | } |
914 | | } |
915 | | flags_and_attributes = FILE_ATTRIBUTE_NORMAL; |
916 | | |
917 | | if( internal_file->use_asynchronous_io != 0 ) |
918 | | { |
919 | | flags_and_attributes |= FILE_FLAG_OVERLAPPED; |
920 | | } |
921 | | #if ( WINVER <= 0x0500 ) |
922 | | internal_file->handle = libcfile_CreateFileW( |
923 | | (LPCWSTR) filename, |
924 | | file_io_access_flags, |
925 | | file_io_shared_flags, |
926 | | NULL, |
927 | | file_io_creation_flags, |
928 | | flags_and_attributes, |
929 | | NULL ); |
930 | | #else |
931 | | internal_file->handle = CreateFileW( |
932 | | (LPCWSTR) filename, |
933 | | file_io_access_flags, |
934 | | file_io_shared_flags, |
935 | | NULL, |
936 | | file_io_creation_flags, |
937 | | flags_and_attributes, |
938 | | NULL ); |
939 | | #endif |
940 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
941 | | { |
942 | | *error_code = (uint32_t) GetLastError(); |
943 | | |
944 | | switch( *error_code ) |
945 | | { |
946 | | case ERROR_ACCESS_DENIED: |
947 | | libcerror_error_set( |
948 | | error, |
949 | | LIBCERROR_ERROR_DOMAIN_IO, |
950 | | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
951 | | "%s: access denied to file: %" PRIs_SYSTEM ".", |
952 | | function, |
953 | | filename ); |
954 | | |
955 | | break; |
956 | | |
957 | | case ERROR_FILE_NOT_FOUND: |
958 | | case ERROR_PATH_NOT_FOUND: |
959 | | libcerror_error_set( |
960 | | error, |
961 | | LIBCERROR_ERROR_DOMAIN_IO, |
962 | | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
963 | | "%s: no such file: %" PRIs_SYSTEM ".", |
964 | | function, |
965 | | filename ); |
966 | | |
967 | | break; |
968 | | |
969 | | default: |
970 | | libcerror_system_set_error( |
971 | | error, |
972 | | LIBCERROR_ERROR_DOMAIN_IO, |
973 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
974 | | *error_code, |
975 | | "%s: unable to open file: %" PRIs_SYSTEM ".", |
976 | | function, |
977 | | filename ); |
978 | | |
979 | | break; |
980 | | } |
981 | | return( -1 ); |
982 | | } |
983 | | #if defined( LIBCFILE_HAVE_IO_CONTROL ) |
984 | | if( internal_file->is_device_filename != 0 ) |
985 | | { |
986 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
987 | | internal_file, |
988 | | FSCTL_ALLOW_EXTENDED_DASD_IO, |
989 | | NULL, |
990 | | 0, |
991 | | NULL, |
992 | | 0, |
993 | | error_code, |
994 | | error ); |
995 | | |
996 | | if( read_count == -1 ) |
997 | | { |
998 | | libcerror_error_set( |
999 | | error, |
1000 | | LIBCERROR_ERROR_DOMAIN_IO, |
1001 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
1002 | | "%s: unable to query device for: FSCTL_ALLOW_EXTENDED_DASD_IO.", |
1003 | | function ); |
1004 | | |
1005 | | #if defined( HAVE_DEBUG_OUTPUT ) |
1006 | | if( libcnotify_verbose != 0 ) |
1007 | | { |
1008 | | if( ( error != NULL ) |
1009 | | && ( *error != NULL ) ) |
1010 | | { |
1011 | | libcnotify_print_error_backtrace( |
1012 | | *error ); |
1013 | | } |
1014 | | } |
1015 | | #endif |
1016 | | libcerror_error_free( |
1017 | | error ); |
1018 | | } |
1019 | | if( libcfile_internal_file_determine_block_size( |
1020 | | internal_file, |
1021 | | error ) != 1 ) |
1022 | | { |
1023 | | libcerror_error_set( |
1024 | | error, |
1025 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1026 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1027 | | "%s: unable to determine block size.", |
1028 | | function ); |
1029 | | |
1030 | | return( -1 ); |
1031 | | } |
1032 | | } |
1033 | | #endif /* defined( LIBCFILE_HAVE_IO_CONTROL ) */ |
1034 | | |
1035 | | if( libcfile_internal_file_get_size( |
1036 | | internal_file, |
1037 | | &( internal_file->size ), |
1038 | | error ) != 1 ) |
1039 | | { |
1040 | | libcerror_error_set( |
1041 | | error, |
1042 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1043 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1044 | | "%s: unable to retrieve size.", |
1045 | | function ); |
1046 | | |
1047 | | return( -1 ); |
1048 | | } |
1049 | | internal_file->access_flags = access_flags; |
1050 | | internal_file->current_offset = 0; |
1051 | | |
1052 | | return( 1 ); |
1053 | | } |
1054 | | |
1055 | | #elif defined( HAVE_OPEN ) |
1056 | | |
1057 | | /* Opens a file |
1058 | | * This function uses the POSIX open function or equivalent |
1059 | | * Returns 1 if successful or -1 on error |
1060 | | */ |
1061 | | int libcfile_file_open_wide_with_error_code( |
1062 | | libcfile_file_t *file, |
1063 | | const wchar_t *filename, |
1064 | | int access_flags, |
1065 | | uint32_t *error_code, |
1066 | | libcerror_error_t **error ) |
1067 | | { |
1068 | | #if defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) |
1069 | | struct stat file_statistics; |
1070 | | #endif |
1071 | | libcfile_internal_file_t *internal_file = NULL; |
1072 | | static char *function = "libcfile_file_open_wide_with_error_code"; |
1073 | | char *narrow_filename = NULL; |
1074 | | size_t filename_size = 0; |
1075 | | size_t narrow_filename_size = 0; |
1076 | | int file_io_flags = 0; |
1077 | | |
1078 | | if( file == NULL ) |
1079 | | { |
1080 | | libcerror_error_set( |
1081 | | error, |
1082 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1083 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1084 | | "%s: invalid file.", |
1085 | | function ); |
1086 | | |
1087 | | return( -1 ); |
1088 | | } |
1089 | | internal_file = (libcfile_internal_file_t *) file; |
1090 | | |
1091 | | if( internal_file->descriptor != -1 ) |
1092 | | { |
1093 | | libcerror_error_set( |
1094 | | error, |
1095 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1096 | | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
1097 | | "%s: invalid file - descriptor value already set.", |
1098 | | function ); |
1099 | | |
1100 | | return( -1 ); |
1101 | | } |
1102 | | if( filename == NULL ) |
1103 | | { |
1104 | | libcerror_error_set( |
1105 | | error, |
1106 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1107 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1108 | | "%s: invalid filename.", |
1109 | | function ); |
1110 | | |
1111 | | return( -1 ); |
1112 | | } |
1113 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
1114 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
1115 | | { |
1116 | | file_io_flags = O_RDWR | O_CREAT; |
1117 | | } |
1118 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
1119 | | { |
1120 | | file_io_flags = O_RDONLY; |
1121 | | } |
1122 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
1123 | | { |
1124 | | file_io_flags = O_WRONLY | O_CREAT; |
1125 | | } |
1126 | | else |
1127 | | { |
1128 | | libcerror_error_set( |
1129 | | error, |
1130 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1131 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1132 | | "%s: unsupported access flags: 0x%02x.", |
1133 | | function, |
1134 | | access_flags ); |
1135 | | |
1136 | | return( -1 ); |
1137 | | } |
1138 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
1139 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
1140 | | { |
1141 | | file_io_flags |= O_TRUNC; |
1142 | | } |
1143 | | if( error_code == NULL ) |
1144 | | { |
1145 | | libcerror_error_set( |
1146 | | error, |
1147 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1148 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1149 | | "%s: invalid error code.", |
1150 | | function ); |
1151 | | |
1152 | | return( -1 ); |
1153 | | } |
1154 | | filename_size = 1 + wide_string_length( |
1155 | | filename ); |
1156 | | |
1157 | | if( libcfile_system_string_size_from_wide_string( |
1158 | | filename, |
1159 | | filename_size, |
1160 | | &narrow_filename_size, |
1161 | | error ) != 1 ) |
1162 | | { |
1163 | | libcerror_error_set( |
1164 | | error, |
1165 | | LIBCERROR_ERROR_DOMAIN_CONVERSION, |
1166 | | LIBCERROR_CONVERSION_ERROR_GENERIC, |
1167 | | "%s: unable to determine narrow character filename size.", |
1168 | | function ); |
1169 | | |
1170 | | goto on_error; |
1171 | | } |
1172 | | narrow_filename = narrow_string_allocate( |
1173 | | narrow_filename_size ); |
1174 | | |
1175 | | if( narrow_filename == NULL ) |
1176 | | { |
1177 | | libcerror_error_set( |
1178 | | error, |
1179 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1180 | | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
1181 | | "%s: unable to create narrow character filename.", |
1182 | | function ); |
1183 | | |
1184 | | goto on_error; |
1185 | | } |
1186 | | if( libcfile_system_string_copy_from_wide_string( |
1187 | | narrow_filename, |
1188 | | narrow_filename_size, |
1189 | | filename, |
1190 | | filename_size, |
1191 | | error ) != 1 ) |
1192 | | { |
1193 | | libcerror_error_set( |
1194 | | error, |
1195 | | LIBCERROR_ERROR_DOMAIN_CONVERSION, |
1196 | | LIBCERROR_CONVERSION_ERROR_GENERIC, |
1197 | | "%s: unable to set narrow character filename.", |
1198 | | function ); |
1199 | | |
1200 | | goto on_error; |
1201 | | } |
1202 | | #if defined( O_CLOEXEC ) |
1203 | | /* Prevent the file descriptor to remain open across an execve |
1204 | | */ |
1205 | | file_io_flags |= O_CLOEXEC; |
1206 | | #endif |
1207 | | #if defined( __MINGW32__ ) |
1208 | | /* Ensure the file descriptor is opened in binary mode |
1209 | | */ |
1210 | | file_io_flags |= O_BINARY; |
1211 | | #endif |
1212 | | internal_file->descriptor = open( |
1213 | | narrow_filename, |
1214 | | file_io_flags, |
1215 | | 0644 ); |
1216 | | |
1217 | | memory_free( |
1218 | | narrow_filename ); |
1219 | | |
1220 | | narrow_filename = NULL; |
1221 | | |
1222 | | if( internal_file->descriptor == -1 ) |
1223 | | { |
1224 | | *error_code = (uint32_t) errno; |
1225 | | |
1226 | | switch( *error_code ) |
1227 | | { |
1228 | | case EACCES: |
1229 | | libcerror_error_set( |
1230 | | error, |
1231 | | LIBCERROR_ERROR_DOMAIN_IO, |
1232 | | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
1233 | | "%s: access denied to file: %" PRIs_SYSTEM ".", |
1234 | | function, |
1235 | | filename ); |
1236 | | |
1237 | | break; |
1238 | | |
1239 | | case ENOENT: |
1240 | | libcerror_error_set( |
1241 | | error, |
1242 | | LIBCERROR_ERROR_DOMAIN_IO, |
1243 | | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
1244 | | "%s: no such file: %" PRIs_SYSTEM ".", |
1245 | | function, |
1246 | | filename ); |
1247 | | |
1248 | | break; |
1249 | | |
1250 | | default: |
1251 | | libcerror_system_set_error( |
1252 | | error, |
1253 | | LIBCERROR_ERROR_DOMAIN_IO, |
1254 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
1255 | | *error_code, |
1256 | | "%s: unable to open file: %" PRIs_SYSTEM ".", |
1257 | | function, |
1258 | | filename ); |
1259 | | |
1260 | | break; |
1261 | | } |
1262 | | goto on_error; |
1263 | | } |
1264 | | #if defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) |
1265 | | if( fstat( |
1266 | | internal_file->descriptor, |
1267 | | &file_statistics ) != 0 ) |
1268 | | { |
1269 | | libcerror_error_set( |
1270 | | error, |
1271 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1272 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1273 | | "%s: unable to retrieve file statistics.", |
1274 | | function ); |
1275 | | |
1276 | | return( -1 ); |
1277 | | } |
1278 | | if( S_ISBLK( file_statistics.st_mode ) ) |
1279 | | { |
1280 | | if( libcfile_internal_file_determine_block_size( |
1281 | | internal_file, |
1282 | | error ) != 1 ) |
1283 | | { |
1284 | | libcerror_error_set( |
1285 | | error, |
1286 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1287 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1288 | | "%s: unable to determine block size.", |
1289 | | function ); |
1290 | | |
1291 | | return( -1 ); |
1292 | | } |
1293 | | } |
1294 | | #endif /* defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) */ |
1295 | | |
1296 | | if( libcfile_internal_file_get_size( |
1297 | | internal_file, |
1298 | | &( internal_file->size ), |
1299 | | error ) != 1 ) |
1300 | | { |
1301 | | libcerror_error_set( |
1302 | | error, |
1303 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1304 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1305 | | "%s: unable to retrieve size.", |
1306 | | function ); |
1307 | | |
1308 | | goto on_error; |
1309 | | } |
1310 | | return( 1 ); |
1311 | | |
1312 | | on_error: |
1313 | | if( narrow_filename != NULL ) |
1314 | | { |
1315 | | memory_free( |
1316 | | narrow_filename ); |
1317 | | } |
1318 | | return( -1 ); |
1319 | | } |
1320 | | |
1321 | | #else |
1322 | | #error Missing file open wide function |
1323 | | #endif |
1324 | | |
1325 | | #endif /* defined( HAVE_WIDE_CHARACTER_TYPE ) */ |
1326 | | |
1327 | | #if defined( WINAPI ) |
1328 | | |
1329 | | /* Closes the file |
1330 | | * This function uses the WINAPI function for Windows 2000 (0x0500) or later |
1331 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
1332 | | * Returns 0 if successful or -1 on error |
1333 | | */ |
1334 | | int libcfile_file_close( |
1335 | | libcfile_file_t *file, |
1336 | | libcerror_error_t **error ) |
1337 | | { |
1338 | | libcfile_internal_file_t *internal_file = NULL; |
1339 | | static char *function = "libcfile_file_close"; |
1340 | | DWORD error_code = 0; |
1341 | | BOOL result = FALSE; |
1342 | | |
1343 | | if( file == NULL ) |
1344 | | { |
1345 | | libcerror_error_set( |
1346 | | error, |
1347 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1348 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1349 | | "%s: invalid file.", |
1350 | | function ); |
1351 | | |
1352 | | return( -1 ); |
1353 | | } |
1354 | | internal_file = (libcfile_internal_file_t *) file; |
1355 | | |
1356 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
1357 | | { |
1358 | | #if ( WINVER <= 0x0500 ) |
1359 | | result = libcfile_CloseHandle( |
1360 | | internal_file->handle ); |
1361 | | #else |
1362 | | result = CloseHandle( |
1363 | | internal_file->handle ); |
1364 | | #endif |
1365 | | if( result == 0 ) |
1366 | | { |
1367 | | error_code = GetLastError(); |
1368 | | |
1369 | | libcerror_system_set_error( |
1370 | | error, |
1371 | | LIBCERROR_ERROR_DOMAIN_IO, |
1372 | | LIBCERROR_IO_ERROR_CLOSE_FAILED, |
1373 | | error_code, |
1374 | | "%s: unable to close file.", |
1375 | | function ); |
1376 | | |
1377 | | return( -1 ); |
1378 | | } |
1379 | | internal_file->handle = INVALID_HANDLE_VALUE; |
1380 | | internal_file->is_device_filename = 0; |
1381 | | internal_file->use_asynchronous_io = 0; |
1382 | | internal_file->access_flags = 0; |
1383 | | internal_file->size = 0; |
1384 | | internal_file->current_offset = 0; |
1385 | | } |
1386 | | if( internal_file->block_data != NULL ) |
1387 | | { |
1388 | | if( memory_set( |
1389 | | internal_file->block_data, |
1390 | | 0, |
1391 | | internal_file->block_size ) == NULL ) |
1392 | | { |
1393 | | libcerror_error_set( |
1394 | | error, |
1395 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1396 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1397 | | "%s: unable to clear block data.", |
1398 | | function ); |
1399 | | |
1400 | | return( -1 ); |
1401 | | } |
1402 | | } |
1403 | | return( 0 ); |
1404 | | } |
1405 | | |
1406 | | #elif defined( HAVE_CLOSE ) |
1407 | | |
1408 | | /* Closes the file |
1409 | | * This function uses the POSIX close function or equivalent |
1410 | | * Returns 0 if successful or -1 on error |
1411 | | */ |
1412 | | int libcfile_file_close( |
1413 | | libcfile_file_t *file, |
1414 | | libcerror_error_t **error ) |
1415 | 0 | { |
1416 | 0 | libcfile_internal_file_t *internal_file = NULL; |
1417 | 0 | static char *function = "libcfile_file_close"; |
1418 | |
|
1419 | 0 | if( file == NULL ) |
1420 | 0 | { |
1421 | 0 | libcerror_error_set( |
1422 | 0 | error, |
1423 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1424 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1425 | 0 | "%s: invalid file.", |
1426 | 0 | function ); |
1427 | |
|
1428 | 0 | return( -1 ); |
1429 | 0 | } |
1430 | 0 | internal_file = (libcfile_internal_file_t *) file; |
1431 | |
|
1432 | 0 | if( internal_file->descriptor != -1 ) |
1433 | 0 | { |
1434 | 0 | if( close( |
1435 | 0 | internal_file->descriptor ) != 0 ) |
1436 | 0 | { |
1437 | 0 | libcerror_system_set_error( |
1438 | 0 | error, |
1439 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
1440 | 0 | LIBCERROR_IO_ERROR_CLOSE_FAILED, |
1441 | 0 | errno, |
1442 | 0 | "%s: unable to close file.", |
1443 | 0 | function ); |
1444 | |
|
1445 | 0 | return( -1 ); |
1446 | 0 | } |
1447 | 0 | internal_file->descriptor = -1; |
1448 | 0 | internal_file->access_flags = 0; |
1449 | 0 | internal_file->size = 0; |
1450 | 0 | internal_file->current_offset = 0; |
1451 | 0 | } |
1452 | 0 | if( internal_file->block_data != NULL ) |
1453 | 0 | { |
1454 | 0 | if( memory_set( |
1455 | 0 | internal_file->block_data, |
1456 | 0 | 0, |
1457 | 0 | internal_file->block_size ) == NULL ) |
1458 | 0 | { |
1459 | 0 | libcerror_error_set( |
1460 | 0 | error, |
1461 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1462 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1463 | 0 | "%s: unable to clear block data.", |
1464 | 0 | function ); |
1465 | |
|
1466 | 0 | return( -1 ); |
1467 | 0 | } |
1468 | 0 | } |
1469 | 0 | return( 0 ); |
1470 | 0 | } |
1471 | | |
1472 | | #else |
1473 | | #error Missing file close function |
1474 | | #endif |
1475 | | |
1476 | | /* Reads a buffer from the file |
1477 | | * Returns the number of bytes read if successful, or -1 on error |
1478 | | */ |
1479 | | ssize_t libcfile_file_read_buffer( |
1480 | | libcfile_file_t *file, |
1481 | | uint8_t *buffer, |
1482 | | size_t size, |
1483 | | libcerror_error_t **error ) |
1484 | 0 | { |
1485 | 0 | static char *function = "libcfile_file_read_buffer"; |
1486 | 0 | ssize_t read_count = 0; |
1487 | 0 | uint32_t error_code = 0; |
1488 | |
|
1489 | 0 | read_count = libcfile_file_read_buffer_with_error_code( |
1490 | 0 | file, |
1491 | 0 | buffer, |
1492 | 0 | size, |
1493 | 0 | &error_code, |
1494 | 0 | error ); |
1495 | |
|
1496 | 0 | if( read_count == -1 ) |
1497 | 0 | { |
1498 | 0 | libcerror_error_set( |
1499 | 0 | error, |
1500 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
1501 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
1502 | 0 | "%s: unable to read from file.", |
1503 | 0 | function ); |
1504 | |
|
1505 | 0 | return( -1 ); |
1506 | 0 | } |
1507 | 0 | return( read_count ); |
1508 | 0 | } |
1509 | | |
1510 | | #if defined( WINAPI ) |
1511 | | |
1512 | | /* Reads a buffer from the file |
1513 | | * This is an internal function to wrap ReadFile in synchronous and asynchronous mode |
1514 | | * the current_offset is only used in asynchronous mode. |
1515 | | * Returns the number of bytes read if successful, or -1 on error |
1516 | | */ |
1517 | | ssize_t libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1518 | | libcfile_internal_file_t *internal_file, |
1519 | | off64_t current_offset, |
1520 | | uint8_t *buffer, |
1521 | | size_t size, |
1522 | | uint32_t *error_code, |
1523 | | libcerror_error_t **error ) |
1524 | | { |
1525 | | OVERLAPPED overlapped_data; |
1526 | | |
1527 | | static char *function = "libcfile_internal_file_read_buffer_at_offset_with_error_code"; |
1528 | | OVERLAPPED *overlapped = NULL; |
1529 | | DWORD read_count = 0; |
1530 | | BOOL io_pending = FALSE; |
1531 | | BOOL result = FALSE; |
1532 | | |
1533 | | if( internal_file == NULL ) |
1534 | | { |
1535 | | libcerror_error_set( |
1536 | | error, |
1537 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1538 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1539 | | "%s: invalid file.", |
1540 | | function ); |
1541 | | |
1542 | | return( -1 ); |
1543 | | } |
1544 | | if( current_offset < 0 ) |
1545 | | { |
1546 | | libcerror_error_set( |
1547 | | error, |
1548 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1549 | | LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS, |
1550 | | "%s: invalid current offset value out of bounds.", |
1551 | | function ); |
1552 | | |
1553 | | return( -1 ); |
1554 | | } |
1555 | | if( buffer == NULL ) |
1556 | | { |
1557 | | libcerror_error_set( |
1558 | | error, |
1559 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1560 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1561 | | "%s: invalid buffer.", |
1562 | | function ); |
1563 | | |
1564 | | return( -1 ); |
1565 | | } |
1566 | | #if ( UINT32_MAX < SSIZE_MAX ) |
1567 | | if( size > (size_t) UINT32_MAX ) |
1568 | | #else |
1569 | | if( size > (size_t) SSIZE_MAX ) |
1570 | | #endif |
1571 | | { |
1572 | | libcerror_error_set( |
1573 | | error, |
1574 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1575 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1576 | | "%s: invalid size value exceeds maximum.", |
1577 | | function ); |
1578 | | |
1579 | | return( -1 ); |
1580 | | } |
1581 | | if( error_code == NULL ) |
1582 | | { |
1583 | | libcerror_error_set( |
1584 | | error, |
1585 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1586 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1587 | | "%s: invalid error code.", |
1588 | | function ); |
1589 | | |
1590 | | return( -1 ); |
1591 | | } |
1592 | | /* For Windows devices we need to use asynchronous IO here |
1593 | | * otherwise the ReadFile function can return ERROR_INVALID_PARAMETER |
1594 | | * if the device is read concurrently and the the block is too large |
1595 | | * to fill. Using smaller block sizes decreases the likelyhood but |
1596 | | * also impacts the performance. |
1597 | | */ |
1598 | | if( internal_file->use_asynchronous_io != 0 ) |
1599 | | { |
1600 | | if( memory_set( |
1601 | | &overlapped_data, |
1602 | | 0, |
1603 | | sizeof( OVERLAPPED ) ) == NULL ) |
1604 | | { |
1605 | | libcerror_error_set( |
1606 | | error, |
1607 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1608 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1609 | | "%s: unable to clear overlapped data.", |
1610 | | function ); |
1611 | | |
1612 | | return( -1 ); |
1613 | | } |
1614 | | overlapped = &overlapped_data; |
1615 | | |
1616 | | overlapped->Offset = (DWORD) ( 0x0ffffffffUL & current_offset ); |
1617 | | overlapped->OffsetHigh = (DWORD) ( current_offset >> 32 ); |
1618 | | } |
1619 | | #if ( WINVER <= 0x0500 ) |
1620 | | result = libcfile_ReadFile( |
1621 | | internal_file->handle, |
1622 | | buffer, |
1623 | | (DWORD) size, |
1624 | | &read_count, |
1625 | | overlapped ); |
1626 | | #else |
1627 | | result = ReadFile( |
1628 | | internal_file->handle, |
1629 | | (VOID *) buffer, |
1630 | | (DWORD) size, |
1631 | | &read_count, |
1632 | | overlapped ); |
1633 | | #endif |
1634 | | if( result == 0 ) |
1635 | | { |
1636 | | *error_code = (uint32_t) GetLastError(); |
1637 | | |
1638 | | switch( *error_code ) |
1639 | | { |
1640 | | case ERROR_HANDLE_EOF: |
1641 | | break; |
1642 | | |
1643 | | case ERROR_IO_PENDING: |
1644 | | io_pending = TRUE; |
1645 | | break; |
1646 | | |
1647 | | default: |
1648 | | libcerror_system_set_error( |
1649 | | error, |
1650 | | LIBCERROR_ERROR_DOMAIN_IO, |
1651 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1652 | | *error_code, |
1653 | | "%s: unable to read from file.", |
1654 | | function ); |
1655 | | |
1656 | | return( -1 ); |
1657 | | } |
1658 | | } |
1659 | | if( io_pending == TRUE ) |
1660 | | { |
1661 | | #if ( WINVER <= 0x0500 ) |
1662 | | result = libcfile_GetOverlappedResult( |
1663 | | internal_file->handle, |
1664 | | overlapped, |
1665 | | &read_count, |
1666 | | TRUE ); |
1667 | | #else |
1668 | | result = GetOverlappedResult( |
1669 | | internal_file->handle, |
1670 | | overlapped, |
1671 | | &read_count, |
1672 | | TRUE ); |
1673 | | #endif |
1674 | | if( result == 0 ) |
1675 | | { |
1676 | | *error_code = (uint32_t) GetLastError(); |
1677 | | |
1678 | | switch( *error_code ) |
1679 | | { |
1680 | | case ERROR_HANDLE_EOF: |
1681 | | break; |
1682 | | |
1683 | | default: |
1684 | | libcerror_system_set_error( |
1685 | | error, |
1686 | | LIBCERROR_ERROR_DOMAIN_IO, |
1687 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1688 | | *error_code, |
1689 | | "%s: unable to read from file - overlapped result.", |
1690 | | function ); |
1691 | | |
1692 | | return( -1 ); |
1693 | | } |
1694 | | } |
1695 | | } |
1696 | | return( (ssize_t) read_count ); |
1697 | | } |
1698 | | |
1699 | | /* Reads a buffer from the file |
1700 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
1701 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
1702 | | * Returns the number of bytes read if successful, or -1 on error |
1703 | | */ |
1704 | | ssize_t libcfile_file_read_buffer_with_error_code( |
1705 | | libcfile_file_t *file, |
1706 | | uint8_t *buffer, |
1707 | | size_t size, |
1708 | | uint32_t *error_code, |
1709 | | libcerror_error_t **error ) |
1710 | | { |
1711 | | libcfile_internal_file_t *internal_file = NULL; |
1712 | | static char *function = "libcfile_file_read_buffer_with_error_code"; |
1713 | | size_t buffer_offset = 0; |
1714 | | size_t read_size = 0; |
1715 | | size_t read_size_remainder = 0; |
1716 | | ssize_t read_count = 0; |
1717 | | BOOL result = FALSE; |
1718 | | |
1719 | | if( file == NULL ) |
1720 | | { |
1721 | | libcerror_error_set( |
1722 | | error, |
1723 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1724 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1725 | | "%s: invalid file.", |
1726 | | function ); |
1727 | | |
1728 | | return( -1 ); |
1729 | | } |
1730 | | internal_file = (libcfile_internal_file_t *) file; |
1731 | | |
1732 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
1733 | | { |
1734 | | libcerror_error_set( |
1735 | | error, |
1736 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1737 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
1738 | | "%s: invalid file - missing handle.", |
1739 | | function ); |
1740 | | |
1741 | | return( -1 ); |
1742 | | } |
1743 | | if( buffer == NULL ) |
1744 | | { |
1745 | | libcerror_error_set( |
1746 | | error, |
1747 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1748 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1749 | | "%s: invalid buffer.", |
1750 | | function ); |
1751 | | |
1752 | | return( -1 ); |
1753 | | } |
1754 | | #if ( UINT32_MAX < SSIZE_MAX ) |
1755 | | if( size > (size_t) UINT32_MAX ) |
1756 | | #else |
1757 | | if( size > (size_t) SSIZE_MAX ) |
1758 | | #endif |
1759 | | { |
1760 | | libcerror_error_set( |
1761 | | error, |
1762 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1763 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1764 | | "%s: invalid size value exceeds maximum.", |
1765 | | function ); |
1766 | | |
1767 | | return( -1 ); |
1768 | | } |
1769 | | if( error_code == NULL ) |
1770 | | { |
1771 | | libcerror_error_set( |
1772 | | error, |
1773 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1774 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1775 | | "%s: invalid error code.", |
1776 | | function ); |
1777 | | |
1778 | | return( -1 ); |
1779 | | } |
1780 | | if( internal_file->block_size != 0 ) |
1781 | | { |
1782 | | if( internal_file->block_data == NULL ) |
1783 | | { |
1784 | | libcerror_error_set( |
1785 | | error, |
1786 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1787 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
1788 | | "%s: invalid file - missing block data.", |
1789 | | function ); |
1790 | | |
1791 | | return( -1 ); |
1792 | | } |
1793 | | } |
1794 | | if( internal_file->current_offset < 0 ) |
1795 | | { |
1796 | | libcerror_error_set( |
1797 | | error, |
1798 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1799 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1800 | | "%s: invalid file - current offset value out of bounds.", |
1801 | | function ); |
1802 | | |
1803 | | return( -1 ); |
1804 | | } |
1805 | | if( ( size == 0 ) |
1806 | | || ( (size64_t) internal_file->current_offset > internal_file->size ) ) |
1807 | | { |
1808 | | return( 0 ); |
1809 | | } |
1810 | | if( ( (size64_t) internal_file->current_offset + size ) > internal_file->size ) |
1811 | | { |
1812 | | size = (size_t) ( internal_file->size - internal_file->current_offset ); |
1813 | | } |
1814 | | if( internal_file->block_size != 0 ) |
1815 | | { |
1816 | | /* Read a block of data to align with the next block |
1817 | | */ |
1818 | | if( ( internal_file->block_data_offset > 0 ) |
1819 | | && ( internal_file->block_data_size == 0 ) ) |
1820 | | { |
1821 | | if( memory_set( |
1822 | | internal_file->block_data, |
1823 | | 0, |
1824 | | internal_file->block_size ) == NULL ) |
1825 | | { |
1826 | | libcerror_error_set( |
1827 | | error, |
1828 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1829 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1830 | | "%s: unable to clear block data.", |
1831 | | function ); |
1832 | | |
1833 | | return( -1 ); |
1834 | | } |
1835 | | read_count = libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1836 | | internal_file, |
1837 | | internal_file->current_offset - internal_file->block_data_offset, |
1838 | | internal_file->block_data, |
1839 | | internal_file->block_size, |
1840 | | error_code, |
1841 | | error ); |
1842 | | |
1843 | | if( read_count != (ssize_t) internal_file->block_size ) |
1844 | | { |
1845 | | libcerror_system_set_error( |
1846 | | error, |
1847 | | LIBCERROR_ERROR_DOMAIN_IO, |
1848 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1849 | | *error_code, |
1850 | | "%s: unable to read from file (pre-aligned, count: %" PRIzd ").", |
1851 | | function, |
1852 | | read_count ); |
1853 | | |
1854 | | return( -1 ); |
1855 | | } |
1856 | | internal_file->block_data_size = (size_t) read_count; |
1857 | | } |
1858 | | if( ( internal_file->block_data_offset > 0 ) |
1859 | | && ( internal_file->block_data_offset < internal_file->block_data_size ) ) |
1860 | | { |
1861 | | read_size = internal_file->block_data_size - internal_file->block_data_offset; |
1862 | | |
1863 | | if( read_size > size ) |
1864 | | { |
1865 | | read_size = size; |
1866 | | } |
1867 | | if( memory_copy( |
1868 | | buffer, |
1869 | | &( internal_file->block_data[ internal_file->block_data_offset ] ), |
1870 | | read_size ) == NULL ) |
1871 | | { |
1872 | | libcerror_error_set( |
1873 | | error, |
1874 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1875 | | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
1876 | | "%s: unable to copy block data.", |
1877 | | function ); |
1878 | | |
1879 | | return( -1 ); |
1880 | | } |
1881 | | buffer_offset += read_size; |
1882 | | size -= read_size; |
1883 | | internal_file->current_offset += read_size; |
1884 | | internal_file->block_data_offset += read_size; |
1885 | | } |
1886 | | if( size == 0 ) |
1887 | | { |
1888 | | return( (ssize_t) buffer_offset ); |
1889 | | } |
1890 | | } |
1891 | | read_size = size; |
1892 | | |
1893 | | if( internal_file->block_size != 0 ) |
1894 | | { |
1895 | | /* Read block aligned |
1896 | | */ |
1897 | | read_size_remainder = read_size % internal_file->block_size; |
1898 | | read_size -= read_size_remainder; |
1899 | | } |
1900 | | if( read_size > 0 ) |
1901 | | { |
1902 | | read_count = libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1903 | | internal_file, |
1904 | | internal_file->current_offset, |
1905 | | &( buffer[ buffer_offset ] ), |
1906 | | read_size, |
1907 | | error_code, |
1908 | | error ); |
1909 | | |
1910 | | if( ( internal_file->block_size == 0 ) |
1911 | | && ( read_count < 0 ) ) |
1912 | | { |
1913 | | result = 0; |
1914 | | } |
1915 | | else if( ( internal_file->block_size != 0 ) |
1916 | | && ( read_count != (ssize_t) read_size ) ) |
1917 | | { |
1918 | | result = 0; |
1919 | | } |
1920 | | else |
1921 | | { |
1922 | | result = 1; |
1923 | | } |
1924 | | if( result == 0 ) |
1925 | | { |
1926 | | libcerror_system_set_error( |
1927 | | error, |
1928 | | LIBCERROR_ERROR_DOMAIN_IO, |
1929 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1930 | | *error_code, |
1931 | | "%s: unable to read from file.", |
1932 | | function ); |
1933 | | |
1934 | | return( -1 ); |
1935 | | } |
1936 | | buffer_offset += (size_t) read_count; |
1937 | | internal_file->current_offset += read_count; |
1938 | | } |
1939 | | /* Read the non-aligned remainder |
1940 | | */ |
1941 | | if( read_size_remainder > 0 ) |
1942 | | { |
1943 | | if( memory_set( |
1944 | | internal_file->block_data, |
1945 | | 0, |
1946 | | internal_file->block_size ) == NULL ) |
1947 | | { |
1948 | | libcerror_error_set( |
1949 | | error, |
1950 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1951 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1952 | | "%s: unable to clear block data.", |
1953 | | function ); |
1954 | | |
1955 | | return( -1 ); |
1956 | | } |
1957 | | read_count = libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1958 | | internal_file, |
1959 | | internal_file->current_offset, |
1960 | | internal_file->block_data, |
1961 | | internal_file->block_size, |
1962 | | error_code, |
1963 | | error ); |
1964 | | |
1965 | | if( read_count != (ssize_t) internal_file->block_size ) |
1966 | | { |
1967 | | libcerror_system_set_error( |
1968 | | error, |
1969 | | LIBCERROR_ERROR_DOMAIN_IO, |
1970 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1971 | | *error_code, |
1972 | | "%s: unable to read from file (post-aligned, count: %" PRIzd ").", |
1973 | | function, |
1974 | | read_count ); |
1975 | | |
1976 | | return( -1 ); |
1977 | | } |
1978 | | internal_file->block_data_offset = 0; |
1979 | | internal_file->block_data_size = (size_t) read_count; |
1980 | | |
1981 | | if( memory_copy( |
1982 | | &( buffer[ buffer_offset ] ), |
1983 | | internal_file->block_data, |
1984 | | read_size_remainder ) == NULL ) |
1985 | | { |
1986 | | libcerror_error_set( |
1987 | | error, |
1988 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1989 | | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
1990 | | "%s: unable to copy block data.", |
1991 | | function ); |
1992 | | |
1993 | | return( -1 ); |
1994 | | } |
1995 | | buffer_offset += read_size_remainder; |
1996 | | internal_file->current_offset += read_size_remainder; |
1997 | | internal_file->block_data_offset += read_size_remainder; |
1998 | | } |
1999 | | return( (ssize_t) buffer_offset ); |
2000 | | } |
2001 | | |
2002 | | #elif defined( HAVE_READ ) |
2003 | | |
2004 | | /* Reads a buffer from the file |
2005 | | * This function uses the POSIX read function or equivalent |
2006 | | * Returns the number of bytes read if successful, or -1 on error |
2007 | | */ |
2008 | | ssize_t libcfile_file_read_buffer_with_error_code( |
2009 | | libcfile_file_t *file, |
2010 | | uint8_t *buffer, |
2011 | | size_t size, |
2012 | | uint32_t *error_code, |
2013 | | libcerror_error_t **error ) |
2014 | 0 | { |
2015 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2016 | 0 | static char *function = "libcfile_file_read_buffer_with_error_code"; |
2017 | 0 | size_t buffer_offset = 0; |
2018 | 0 | size_t read_size = 0; |
2019 | 0 | size_t read_size_remainder = 0; |
2020 | 0 | ssize_t read_count = 0; |
2021 | 0 | int result = 0; |
2022 | |
|
2023 | 0 | if( file == NULL ) |
2024 | 0 | { |
2025 | 0 | libcerror_error_set( |
2026 | 0 | error, |
2027 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2028 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2029 | 0 | "%s: invalid file.", |
2030 | 0 | function ); |
2031 | |
|
2032 | 0 | return( -1 ); |
2033 | 0 | } |
2034 | 0 | internal_file = (libcfile_internal_file_t *) file; |
2035 | |
|
2036 | 0 | if( internal_file->descriptor == -1 ) |
2037 | 0 | { |
2038 | 0 | libcerror_error_set( |
2039 | 0 | error, |
2040 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2041 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2042 | 0 | "%s: invalid file - missing descriptor.", |
2043 | 0 | function ); |
2044 | |
|
2045 | 0 | return( -1 ); |
2046 | 0 | } |
2047 | 0 | if( buffer == NULL ) |
2048 | 0 | { |
2049 | 0 | libcerror_error_set( |
2050 | 0 | error, |
2051 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2052 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2053 | 0 | "%s: invalid buffer.", |
2054 | 0 | function ); |
2055 | |
|
2056 | 0 | return( -1 ); |
2057 | 0 | } |
2058 | 0 | if( size > (size_t) SSIZE_MAX ) |
2059 | 0 | { |
2060 | 0 | libcerror_error_set( |
2061 | 0 | error, |
2062 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2063 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2064 | 0 | "%s: invalid size value exceeds maximum.", |
2065 | 0 | function ); |
2066 | |
|
2067 | 0 | return( -1 ); |
2068 | 0 | } |
2069 | 0 | if( error_code == NULL ) |
2070 | 0 | { |
2071 | 0 | libcerror_error_set( |
2072 | 0 | error, |
2073 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2074 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2075 | 0 | "%s: invalid error code.", |
2076 | 0 | function ); |
2077 | |
|
2078 | 0 | return( -1 ); |
2079 | 0 | } |
2080 | 0 | if( internal_file->block_size != 0 ) |
2081 | 0 | { |
2082 | 0 | if( internal_file->block_data == NULL ) |
2083 | 0 | { |
2084 | 0 | libcerror_error_set( |
2085 | 0 | error, |
2086 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2087 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2088 | 0 | "%s: invalid file - missing block data.", |
2089 | 0 | function ); |
2090 | |
|
2091 | 0 | return( -1 ); |
2092 | 0 | } |
2093 | 0 | } |
2094 | 0 | if( internal_file->current_offset < 0 ) |
2095 | 0 | { |
2096 | 0 | libcerror_error_set( |
2097 | 0 | error, |
2098 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2099 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2100 | 0 | "%s: invalid file - current offset value out of bounds.", |
2101 | 0 | function ); |
2102 | |
|
2103 | 0 | return( -1 ); |
2104 | 0 | } |
2105 | 0 | if( ( size == 0 ) |
2106 | 0 | || ( (size64_t) internal_file->current_offset > internal_file->size ) ) |
2107 | 0 | { |
2108 | 0 | return( 0 ); |
2109 | 0 | } |
2110 | 0 | if( ( (size64_t) internal_file->current_offset + size ) > internal_file->size ) |
2111 | 0 | { |
2112 | 0 | size = (size_t) ( internal_file->size - internal_file->current_offset ); |
2113 | 0 | } |
2114 | 0 | if( internal_file->block_size != 0 ) |
2115 | 0 | { |
2116 | | /* Read a block of data to align with the next block |
2117 | | */ |
2118 | 0 | if( ( internal_file->block_data_offset > 0 ) |
2119 | 0 | && ( internal_file->block_data_size == 0 ) ) |
2120 | 0 | { |
2121 | 0 | if( memory_set( |
2122 | 0 | internal_file->block_data, |
2123 | 0 | 0, |
2124 | 0 | internal_file->block_size ) == NULL ) |
2125 | 0 | { |
2126 | 0 | libcerror_error_set( |
2127 | 0 | error, |
2128 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2129 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
2130 | 0 | "%s: unable to clear block data.", |
2131 | 0 | function ); |
2132 | |
|
2133 | 0 | return( -1 ); |
2134 | 0 | } |
2135 | 0 | errno = 0; |
2136 | |
|
2137 | 0 | read_count = read( |
2138 | 0 | internal_file->descriptor, |
2139 | 0 | internal_file->block_data, |
2140 | 0 | internal_file->block_size ); |
2141 | |
|
2142 | 0 | if( read_count != (ssize_t) internal_file->block_size ) |
2143 | 0 | { |
2144 | 0 | *error_code = (uint32_t) errno; |
2145 | |
|
2146 | 0 | libcerror_system_set_error( |
2147 | 0 | error, |
2148 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2149 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
2150 | 0 | *error_code, |
2151 | 0 | "%s: unable to read from file (pre-aligned, count: %" PRIzd ").", |
2152 | 0 | function, |
2153 | 0 | read_count ); |
2154 | |
|
2155 | 0 | return( -1 ); |
2156 | 0 | } |
2157 | 0 | internal_file->block_data_size = (size_t) read_count; |
2158 | 0 | } |
2159 | 0 | if( ( internal_file->block_data_offset > 0 ) |
2160 | 0 | && ( internal_file->block_data_offset < internal_file->block_data_size ) ) |
2161 | 0 | { |
2162 | 0 | read_size = internal_file->block_data_size - internal_file->block_data_offset; |
2163 | |
|
2164 | 0 | if( read_size > size ) |
2165 | 0 | { |
2166 | 0 | read_size = size; |
2167 | 0 | } |
2168 | 0 | if( memory_copy( |
2169 | 0 | buffer, |
2170 | 0 | &( internal_file->block_data[ internal_file->block_data_offset ] ), |
2171 | 0 | read_size ) == NULL ) |
2172 | 0 | { |
2173 | 0 | libcerror_error_set( |
2174 | 0 | error, |
2175 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2176 | 0 | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
2177 | 0 | "%s: unable to copy block data.", |
2178 | 0 | function ); |
2179 | |
|
2180 | 0 | return( -1 ); |
2181 | 0 | } |
2182 | 0 | buffer_offset += read_size; |
2183 | 0 | size -= read_size; |
2184 | 0 | internal_file->block_data_offset += read_size; |
2185 | 0 | internal_file->current_offset += read_size; |
2186 | 0 | } |
2187 | 0 | if( size == 0 ) |
2188 | 0 | { |
2189 | 0 | return( (ssize_t) buffer_offset ); |
2190 | 0 | } |
2191 | 0 | } |
2192 | 0 | read_size = size; |
2193 | |
|
2194 | 0 | if( internal_file->block_size != 0 ) |
2195 | 0 | { |
2196 | | /* Read block aligned |
2197 | | */ |
2198 | 0 | read_size_remainder = read_size % internal_file->block_size; |
2199 | 0 | read_size -= read_size_remainder; |
2200 | 0 | } |
2201 | 0 | if( read_size > 0 ) |
2202 | 0 | { |
2203 | 0 | errno = 0; |
2204 | |
|
2205 | 0 | read_count = read( |
2206 | 0 | internal_file->descriptor, |
2207 | 0 | (void *) &( buffer[ buffer_offset ] ), |
2208 | 0 | read_size ); |
2209 | |
|
2210 | 0 | if( ( internal_file->block_size == 0 ) |
2211 | 0 | && ( read_count < 0 ) ) |
2212 | 0 | { |
2213 | 0 | result = 0; |
2214 | 0 | } |
2215 | 0 | else if( ( internal_file->block_size != 0 ) |
2216 | 0 | && ( read_count != (ssize_t) read_size ) ) |
2217 | 0 | { |
2218 | 0 | result = 0; |
2219 | 0 | } |
2220 | 0 | else |
2221 | 0 | { |
2222 | 0 | result = 1; |
2223 | 0 | } |
2224 | 0 | if( result == 0 ) |
2225 | 0 | { |
2226 | 0 | *error_code = (uint32_t) errno; |
2227 | |
|
2228 | 0 | libcerror_system_set_error( |
2229 | 0 | error, |
2230 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2231 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
2232 | 0 | *error_code, |
2233 | 0 | "%s: unable to read from file.", |
2234 | 0 | function ); |
2235 | |
|
2236 | 0 | return( -1 ); |
2237 | 0 | } |
2238 | 0 | buffer_offset += (size_t) read_count; |
2239 | 0 | internal_file->current_offset += read_count; |
2240 | 0 | } |
2241 | | /* Read the non-aligned remainder |
2242 | | */ |
2243 | 0 | if( read_size_remainder > 0 ) |
2244 | 0 | { |
2245 | 0 | if( memory_set( |
2246 | 0 | internal_file->block_data, |
2247 | 0 | 0, |
2248 | 0 | internal_file->block_size ) == NULL ) |
2249 | 0 | { |
2250 | 0 | libcerror_error_set( |
2251 | 0 | error, |
2252 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2253 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
2254 | 0 | "%s: unable to clear block data.", |
2255 | 0 | function ); |
2256 | |
|
2257 | 0 | return( -1 ); |
2258 | 0 | } |
2259 | 0 | errno = 0; |
2260 | |
|
2261 | 0 | read_count = read( |
2262 | 0 | internal_file->descriptor, |
2263 | 0 | internal_file->block_data, |
2264 | 0 | internal_file->block_size ); |
2265 | |
|
2266 | 0 | if( read_count != (ssize_t) internal_file->block_size ) |
2267 | 0 | { |
2268 | 0 | *error_code = (uint32_t) errno; |
2269 | |
|
2270 | 0 | libcerror_system_set_error( |
2271 | 0 | error, |
2272 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2273 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
2274 | 0 | *error_code, |
2275 | 0 | "%s: unable to read from file (post-aligned, count: %" PRIzd ").", |
2276 | 0 | function, |
2277 | 0 | read_count ); |
2278 | |
|
2279 | 0 | return( -1 ); |
2280 | 0 | } |
2281 | 0 | internal_file->block_data_offset = 0; |
2282 | 0 | internal_file->block_data_size = (size_t) read_count; |
2283 | |
|
2284 | 0 | if( memory_copy( |
2285 | 0 | &( buffer[ buffer_offset ] ), |
2286 | 0 | internal_file->block_data, |
2287 | 0 | read_size_remainder ) == NULL ) |
2288 | 0 | { |
2289 | 0 | libcerror_error_set( |
2290 | 0 | error, |
2291 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2292 | 0 | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
2293 | 0 | "%s: unable to copy block data.", |
2294 | 0 | function ); |
2295 | |
|
2296 | 0 | return( -1 ); |
2297 | 0 | } |
2298 | 0 | buffer_offset += read_size_remainder; |
2299 | 0 | internal_file->block_data_offset += read_size_remainder; |
2300 | 0 | internal_file->current_offset += read_size_remainder; |
2301 | 0 | } |
2302 | 0 | return( (ssize_t) buffer_offset ); |
2303 | 0 | } |
2304 | | |
2305 | | #else |
2306 | | #error Missing file read function |
2307 | | #endif |
2308 | | |
2309 | | /* Writes a buffer to the file |
2310 | | * Returns the number of bytes written if successful, or -1 on error |
2311 | | */ |
2312 | | ssize_t libcfile_file_write_buffer( |
2313 | | libcfile_file_t *file, |
2314 | | const uint8_t *buffer, |
2315 | | size_t size, |
2316 | | libcerror_error_t **error ) |
2317 | 0 | { |
2318 | 0 | static char *function = "libcfile_file_write_buffer"; |
2319 | 0 | ssize_t write_count = 0; |
2320 | 0 | uint32_t error_code = 0; |
2321 | |
|
2322 | 0 | write_count = libcfile_file_write_buffer_with_error_code( |
2323 | 0 | file, |
2324 | 0 | buffer, |
2325 | 0 | size, |
2326 | 0 | &error_code, |
2327 | 0 | error ); |
2328 | |
|
2329 | 0 | if( write_count == -1 ) |
2330 | 0 | { |
2331 | 0 | libcerror_error_set( |
2332 | 0 | error, |
2333 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2334 | 0 | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2335 | 0 | "%s: unable to write to file.", |
2336 | 0 | function ); |
2337 | |
|
2338 | 0 | return( -1 ); |
2339 | 0 | } |
2340 | 0 | return( write_count ); |
2341 | 0 | } |
2342 | | |
2343 | | #if defined( WINAPI ) |
2344 | | |
2345 | | /* Writes a buffer to the file |
2346 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
2347 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
2348 | | * Returns the number of bytes written if successful, or -1 on error |
2349 | | */ |
2350 | | ssize_t libcfile_file_write_buffer_with_error_code( |
2351 | | libcfile_file_t *file, |
2352 | | const uint8_t *buffer, |
2353 | | size_t size, |
2354 | | uint32_t *error_code, |
2355 | | libcerror_error_t **error ) |
2356 | | { |
2357 | | libcfile_internal_file_t *internal_file = NULL; |
2358 | | static char *function = "libcfile_file_write_buffer_with_error_code"; |
2359 | | ssize_t write_count = 0; |
2360 | | BOOL result = FALSE; |
2361 | | |
2362 | | if( file == NULL ) |
2363 | | { |
2364 | | libcerror_error_set( |
2365 | | error, |
2366 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2367 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2368 | | "%s: invalid file.", |
2369 | | function ); |
2370 | | |
2371 | | return( -1 ); |
2372 | | } |
2373 | | internal_file = (libcfile_internal_file_t *) file; |
2374 | | |
2375 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
2376 | | { |
2377 | | libcerror_error_set( |
2378 | | error, |
2379 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2380 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2381 | | "%s: invalid file - missing handle.", |
2382 | | function ); |
2383 | | |
2384 | | return( -1 ); |
2385 | | } |
2386 | | if( buffer == NULL ) |
2387 | | { |
2388 | | libcerror_error_set( |
2389 | | error, |
2390 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2391 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2392 | | "%s: invalid buffer.", |
2393 | | function ); |
2394 | | |
2395 | | return( -1 ); |
2396 | | } |
2397 | | #if ( UINT32_MAX < SSIZE_MAX ) |
2398 | | if( size > (size_t) UINT32_MAX ) |
2399 | | #else |
2400 | | if( size > (size_t) SSIZE_MAX ) |
2401 | | #endif |
2402 | | { |
2403 | | libcerror_error_set( |
2404 | | error, |
2405 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2406 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2407 | | "%s: invalid size value exceeds maximum.", |
2408 | | function ); |
2409 | | |
2410 | | return( -1 ); |
2411 | | } |
2412 | | if( error_code == NULL ) |
2413 | | { |
2414 | | libcerror_error_set( |
2415 | | error, |
2416 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2417 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2418 | | "%s: invalid error code.", |
2419 | | function ); |
2420 | | |
2421 | | return( -1 ); |
2422 | | } |
2423 | | #if ( WINVER <= 0x0500 ) |
2424 | | result = libcfile_WriteFile( |
2425 | | internal_file->handle, |
2426 | | (VOID *) buffer, |
2427 | | (DWORD) size, |
2428 | | (DWORD *) &write_count, |
2429 | | NULL ); |
2430 | | #else |
2431 | | result = WriteFile( |
2432 | | internal_file->handle, |
2433 | | (VOID *) buffer, |
2434 | | (DWORD) size, |
2435 | | (DWORD *) &write_count, |
2436 | | NULL ); |
2437 | | #endif |
2438 | | if( result == 0 ) |
2439 | | { |
2440 | | *error_code = (uint32_t) GetLastError(); |
2441 | | |
2442 | | libcerror_system_set_error( |
2443 | | error, |
2444 | | LIBCERROR_ERROR_DOMAIN_IO, |
2445 | | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2446 | | *error_code, |
2447 | | "%s: unable to write to file.", |
2448 | | function ); |
2449 | | |
2450 | | return( -1 ); |
2451 | | } |
2452 | | if( write_count < 0 ) |
2453 | | { |
2454 | | libcerror_error_set( |
2455 | | error, |
2456 | | LIBCERROR_ERROR_DOMAIN_IO, |
2457 | | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2458 | | "%s: invalid write count: %" PRIzd " returned.", |
2459 | | function, |
2460 | | write_count ); |
2461 | | |
2462 | | return( -1 ); |
2463 | | } |
2464 | | internal_file->current_offset += write_count; |
2465 | | |
2466 | | if( (size64_t) internal_file->current_offset > internal_file->size ) |
2467 | | { |
2468 | | internal_file->size = (size64_t) internal_file->current_offset; |
2469 | | } |
2470 | | return( write_count ); |
2471 | | } |
2472 | | |
2473 | | #elif defined( HAVE_WRITE ) |
2474 | | |
2475 | | /* Writes a buffer to the file |
2476 | | * This function uses the POSIX write function or equivalent |
2477 | | * Returns the number of bytes written if successful, or -1 on error |
2478 | | */ |
2479 | | ssize_t libcfile_file_write_buffer_with_error_code( |
2480 | | libcfile_file_t *file, |
2481 | | const uint8_t *buffer, |
2482 | | size_t size, |
2483 | | uint32_t *error_code, |
2484 | | libcerror_error_t **error ) |
2485 | 0 | { |
2486 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2487 | 0 | static char *function = "libcfile_file_write_buffer_with_error_code"; |
2488 | 0 | ssize_t write_count = 0; |
2489 | |
|
2490 | 0 | if( file == NULL ) |
2491 | 0 | { |
2492 | 0 | libcerror_error_set( |
2493 | 0 | error, |
2494 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2495 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2496 | 0 | "%s: invalid file.", |
2497 | 0 | function ); |
2498 | |
|
2499 | 0 | return( -1 ); |
2500 | 0 | } |
2501 | 0 | internal_file = (libcfile_internal_file_t *) file; |
2502 | |
|
2503 | 0 | if( internal_file->descriptor == -1 ) |
2504 | 0 | { |
2505 | 0 | libcerror_error_set( |
2506 | 0 | error, |
2507 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2508 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2509 | 0 | "%s: invalid file - missing descriptor.", |
2510 | 0 | function ); |
2511 | |
|
2512 | 0 | return( -1 ); |
2513 | 0 | } |
2514 | 0 | if( buffer == NULL ) |
2515 | 0 | { |
2516 | 0 | libcerror_error_set( |
2517 | 0 | error, |
2518 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2519 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2520 | 0 | "%s: invalid buffer.", |
2521 | 0 | function ); |
2522 | |
|
2523 | 0 | return( -1 ); |
2524 | 0 | } |
2525 | 0 | if( size > (size_t) SSIZE_MAX ) |
2526 | 0 | { |
2527 | 0 | libcerror_error_set( |
2528 | 0 | error, |
2529 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2530 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2531 | 0 | "%s: invalid size value exceeds maximum.", |
2532 | 0 | function ); |
2533 | |
|
2534 | 0 | return( -1 ); |
2535 | 0 | } |
2536 | 0 | if( error_code == NULL ) |
2537 | 0 | { |
2538 | 0 | libcerror_error_set( |
2539 | 0 | error, |
2540 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2541 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2542 | 0 | "%s: invalid error code.", |
2543 | 0 | function ); |
2544 | |
|
2545 | 0 | return( -1 ); |
2546 | 0 | } |
2547 | 0 | write_count = write( |
2548 | 0 | internal_file->descriptor, |
2549 | 0 | (void *) buffer, |
2550 | 0 | size ); |
2551 | |
|
2552 | 0 | if( write_count < 0 ) |
2553 | 0 | { |
2554 | 0 | *error_code = (uint32_t) errno; |
2555 | |
|
2556 | 0 | libcerror_system_set_error( |
2557 | 0 | error, |
2558 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2559 | 0 | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2560 | 0 | *error_code, |
2561 | 0 | "%s: unable to write to file.", |
2562 | 0 | function ); |
2563 | |
|
2564 | 0 | return( -1 ); |
2565 | 0 | } |
2566 | 0 | internal_file->current_offset += write_count; |
2567 | |
|
2568 | 0 | if( (size64_t) internal_file->current_offset > internal_file->size ) |
2569 | 0 | { |
2570 | 0 | internal_file->size = (size64_t) internal_file->current_offset; |
2571 | 0 | } |
2572 | 0 | return( write_count ); |
2573 | 0 | } |
2574 | | |
2575 | | #else |
2576 | | #error Missing file write function |
2577 | | #endif |
2578 | | |
2579 | | #if defined( WINAPI ) |
2580 | | |
2581 | | /* Seeks a certain offset within the file |
2582 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
2583 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
2584 | | * Returns the offset if the seek is successful or -1 on error |
2585 | | */ |
2586 | | off64_t libcfile_file_seek_offset( |
2587 | | libcfile_file_t *file, |
2588 | | off64_t offset, |
2589 | | int whence, |
2590 | | libcerror_error_t **error ) |
2591 | | { |
2592 | | libcfile_internal_file_t *internal_file = NULL; |
2593 | | static char *function = "libcfile_file_seek_offset"; |
2594 | | off64_t calculated_offset = 0; |
2595 | | off64_t offset_remainder = 0; |
2596 | | LARGE_INTEGER large_integer_offset = LIBCFILE_LARGE_INTEGER_ZERO; |
2597 | | DWORD error_code = 0; |
2598 | | DWORD move_method = 0; |
2599 | | |
2600 | | if( file == NULL ) |
2601 | | { |
2602 | | libcerror_error_set( |
2603 | | error, |
2604 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2605 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2606 | | "%s: invalid file.", |
2607 | | function ); |
2608 | | |
2609 | | return( -1 ); |
2610 | | } |
2611 | | internal_file = (libcfile_internal_file_t *) file; |
2612 | | |
2613 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
2614 | | { |
2615 | | libcerror_error_set( |
2616 | | error, |
2617 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2618 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2619 | | "%s: invalid file - missing handle.", |
2620 | | function ); |
2621 | | |
2622 | | return( -1 ); |
2623 | | } |
2624 | | if( offset > (off64_t) INT64_MAX ) |
2625 | | { |
2626 | | libcerror_error_set( |
2627 | | error, |
2628 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2629 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2630 | | "%s: invalid offset value exceeds maximum.", |
2631 | | function ); |
2632 | | |
2633 | | return( -1 ); |
2634 | | } |
2635 | | calculated_offset = offset; |
2636 | | |
2637 | | if( whence == SEEK_CUR ) |
2638 | | { |
2639 | | calculated_offset += internal_file->current_offset; |
2640 | | } |
2641 | | else if( whence == SEEK_END ) |
2642 | | { |
2643 | | calculated_offset += internal_file->size; |
2644 | | } |
2645 | | else if( whence != SEEK_SET ) |
2646 | | { |
2647 | | libcerror_error_set( |
2648 | | error, |
2649 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2650 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2651 | | "%s: unsupported whence.", |
2652 | | function ); |
2653 | | |
2654 | | return( -1 ); |
2655 | | } |
2656 | | if( calculated_offset < 0 ) |
2657 | | { |
2658 | | libcerror_error_set( |
2659 | | error, |
2660 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2661 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2662 | | "%s: invalid offset value out of bounds.", |
2663 | | function ); |
2664 | | |
2665 | | return( -1 ); |
2666 | | } |
2667 | | if( internal_file->block_size != 0 ) |
2668 | | { |
2669 | | whence = SEEK_SET; |
2670 | | offset_remainder = calculated_offset % internal_file->block_size; |
2671 | | offset = calculated_offset - offset_remainder; |
2672 | | } |
2673 | | if( whence == SEEK_SET ) |
2674 | | { |
2675 | | move_method = FILE_BEGIN; |
2676 | | } |
2677 | | else if( whence == SEEK_CUR ) |
2678 | | { |
2679 | | move_method = FILE_CURRENT; |
2680 | | } |
2681 | | else if( whence == SEEK_END ) |
2682 | | { |
2683 | | move_method = FILE_END; |
2684 | | } |
2685 | | /* SetFilePointerEx cannot be used in combination with FILE_FLAG_OVERLAPPED. |
2686 | | */ |
2687 | | if( internal_file->use_asynchronous_io == 0 ) |
2688 | | { |
2689 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2690 | | large_integer_offset.QuadPart = (LONGLONG) offset; |
2691 | | #else |
2692 | | large_integer_offset.LowPart = (DWORD) ( 0x0ffffffffUL & offset ); |
2693 | | large_integer_offset.HighPart = (LONG) ( offset >> 32 ); |
2694 | | #endif |
2695 | | |
2696 | | #if ( WINVER <= 0x0500 ) |
2697 | | if( libcfile_SetFilePointerEx( |
2698 | | internal_file->handle, |
2699 | | large_integer_offset, |
2700 | | &large_integer_offset, |
2701 | | move_method ) == 0 ) |
2702 | | #else |
2703 | | if( SetFilePointerEx( |
2704 | | internal_file->handle, |
2705 | | large_integer_offset, |
2706 | | &large_integer_offset, |
2707 | | move_method ) == 0 ) |
2708 | | #endif |
2709 | | { |
2710 | | error_code = GetLastError(); |
2711 | | |
2712 | | libcerror_system_set_error( |
2713 | | error, |
2714 | | LIBCERROR_ERROR_DOMAIN_IO, |
2715 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2716 | | error_code, |
2717 | | "%s: unable to seek offset in file.", |
2718 | | function ); |
2719 | | |
2720 | | return( -1 ); |
2721 | | } |
2722 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2723 | | offset = (off64_t) large_integer_offset.QuadPart; |
2724 | | #else |
2725 | | offset = ( (off64_t) large_integer_offset.HighPart << 32 ) + large_integer_offset.LowPart; |
2726 | | #endif |
2727 | | if( offset < 0 ) |
2728 | | { |
2729 | | libcerror_error_set( |
2730 | | error, |
2731 | | LIBCERROR_ERROR_DOMAIN_IO, |
2732 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2733 | | "%s: invalid offset: %" PRIi64 " returned.", |
2734 | | function, |
2735 | | offset ); |
2736 | | |
2737 | | return( -1 ); |
2738 | | } |
2739 | | } |
2740 | | internal_file->current_offset = offset; |
2741 | | |
2742 | | if( internal_file->block_size != 0 ) |
2743 | | { |
2744 | | internal_file->current_offset += offset_remainder; |
2745 | | internal_file->block_data_offset = (size_t) offset_remainder; |
2746 | | internal_file->block_data_size = 0; |
2747 | | } |
2748 | | return( internal_file->current_offset ); |
2749 | | } |
2750 | | |
2751 | | #elif defined( HAVE_LSEEK ) |
2752 | | |
2753 | | /* Seeks a certain offset within the file |
2754 | | * This function uses the POSIX lseek function or equivalent |
2755 | | * Returns the offset if the seek is successful or -1 on error |
2756 | | */ |
2757 | | off64_t libcfile_file_seek_offset( |
2758 | | libcfile_file_t *file, |
2759 | | off64_t offset, |
2760 | | int whence, |
2761 | | libcerror_error_t **error ) |
2762 | 0 | { |
2763 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2764 | 0 | static char *function = "libcfile_file_seek_offset"; |
2765 | 0 | off64_t calculated_offset = 0; |
2766 | 0 | off64_t offset_remainder = 0; |
2767 | |
|
2768 | 0 | if( file == NULL ) |
2769 | 0 | { |
2770 | 0 | libcerror_error_set( |
2771 | 0 | error, |
2772 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2773 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2774 | 0 | "%s: invalid file.", |
2775 | 0 | function ); |
2776 | |
|
2777 | 0 | return( -1 ); |
2778 | 0 | } |
2779 | 0 | internal_file = (libcfile_internal_file_t *) file; |
2780 | |
|
2781 | 0 | if( internal_file->descriptor == -1 ) |
2782 | 0 | { |
2783 | 0 | libcerror_error_set( |
2784 | 0 | error, |
2785 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2786 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2787 | 0 | "%s: invalid file - missing descriptor.", |
2788 | 0 | function ); |
2789 | |
|
2790 | 0 | return( -1 ); |
2791 | 0 | } |
2792 | 0 | if( offset > (off64_t) INT64_MAX ) |
2793 | 0 | { |
2794 | 0 | libcerror_error_set( |
2795 | 0 | error, |
2796 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2797 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2798 | 0 | "%s: invalid offset value exceeds maximum.", |
2799 | 0 | function ); |
2800 | |
|
2801 | 0 | return( -1 ); |
2802 | 0 | } |
2803 | 0 | calculated_offset = offset; |
2804 | |
|
2805 | 0 | if( whence == SEEK_CUR ) |
2806 | 0 | { |
2807 | 0 | calculated_offset += internal_file->current_offset; |
2808 | 0 | } |
2809 | 0 | else if( whence == SEEK_END ) |
2810 | 0 | { |
2811 | 0 | calculated_offset += internal_file->size; |
2812 | 0 | } |
2813 | 0 | else if( whence != SEEK_SET ) |
2814 | 0 | { |
2815 | 0 | libcerror_error_set( |
2816 | 0 | error, |
2817 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2818 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2819 | 0 | "%s: unsupported whence.", |
2820 | 0 | function ); |
2821 | |
|
2822 | 0 | return( -1 ); |
2823 | 0 | } |
2824 | 0 | if( calculated_offset < 0 ) |
2825 | 0 | { |
2826 | 0 | libcerror_error_set( |
2827 | 0 | error, |
2828 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2829 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2830 | 0 | "%s: invalid offset value out of bounds.", |
2831 | 0 | function ); |
2832 | |
|
2833 | 0 | return( -1 ); |
2834 | 0 | } |
2835 | 0 | if( internal_file->block_size != 0 ) |
2836 | 0 | { |
2837 | 0 | whence = SEEK_SET; |
2838 | 0 | offset_remainder = calculated_offset % internal_file->block_size; |
2839 | 0 | offset = calculated_offset - offset_remainder; |
2840 | 0 | } |
2841 | 0 | offset = lseek( |
2842 | 0 | internal_file->descriptor, |
2843 | 0 | (off_t) offset, |
2844 | 0 | whence ); |
2845 | |
|
2846 | 0 | if( offset < 0 ) |
2847 | 0 | { |
2848 | 0 | libcerror_system_set_error( |
2849 | 0 | error, |
2850 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2851 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2852 | 0 | errno, |
2853 | 0 | "%s: unable to seek offset in file.", |
2854 | 0 | function ); |
2855 | |
|
2856 | 0 | return( -1 ); |
2857 | 0 | } |
2858 | 0 | internal_file->current_offset = offset; |
2859 | |
|
2860 | 0 | if( internal_file->block_size != 0 ) |
2861 | 0 | { |
2862 | 0 | internal_file->current_offset += offset_remainder; |
2863 | 0 | internal_file->block_data_offset = (size_t) offset_remainder; |
2864 | 0 | internal_file->block_data_size = 0; |
2865 | 0 | } |
2866 | 0 | return( internal_file->current_offset ); |
2867 | 0 | } |
2868 | | |
2869 | | #else |
2870 | | #error Missing file lseek function |
2871 | | #endif |
2872 | | |
2873 | | #if defined( WINAPI ) |
2874 | | |
2875 | | /* Resizes the file |
2876 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
2877 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
2878 | | * Returns 1 if successful or -1 on error |
2879 | | */ |
2880 | | int libcfile_file_resize( |
2881 | | libcfile_file_t *file, |
2882 | | size64_t size, |
2883 | | libcerror_error_t **error ) |
2884 | | { |
2885 | | libcfile_internal_file_t *internal_file = NULL; |
2886 | | static char *function = "libcfile_file_resize"; |
2887 | | off64_t offset = 0; |
2888 | | LARGE_INTEGER large_integer_offset = LIBCFILE_LARGE_INTEGER_ZERO; |
2889 | | DWORD error_code = 0; |
2890 | | |
2891 | | if( file == NULL ) |
2892 | | { |
2893 | | libcerror_error_set( |
2894 | | error, |
2895 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2896 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2897 | | "%s: invalid file.", |
2898 | | function ); |
2899 | | |
2900 | | return( -1 ); |
2901 | | } |
2902 | | internal_file = (libcfile_internal_file_t *) file; |
2903 | | |
2904 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
2905 | | { |
2906 | | libcerror_error_set( |
2907 | | error, |
2908 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2909 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2910 | | "%s: invalid file - missing handle.", |
2911 | | function ); |
2912 | | |
2913 | | return( -1 ); |
2914 | | } |
2915 | | if( size > (size64_t) INT64_MAX ) |
2916 | | { |
2917 | | libcerror_error_set( |
2918 | | error, |
2919 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2920 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2921 | | "%s: invalid size value exceeds maximum.", |
2922 | | function ); |
2923 | | |
2924 | | return( -1 ); |
2925 | | } |
2926 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2927 | | large_integer_offset.QuadPart = (LONGLONG) size; |
2928 | | #else |
2929 | | large_integer_offset.LowPart = (DWORD) ( 0x0ffffffffUL & size ); |
2930 | | large_integer_offset.HighPart = (LONG) ( size >> 32 ); |
2931 | | #endif |
2932 | | |
2933 | | #if ( WINVER <= 0x0500 ) |
2934 | | if( libcfile_SetFilePointerEx( |
2935 | | internal_file->handle, |
2936 | | large_integer_offset, |
2937 | | &large_integer_offset, |
2938 | | FILE_BEGIN ) == 0 ) |
2939 | | #else |
2940 | | if( SetFilePointerEx( |
2941 | | internal_file->handle, |
2942 | | large_integer_offset, |
2943 | | &large_integer_offset, |
2944 | | FILE_BEGIN ) == 0 ) |
2945 | | #endif |
2946 | | { |
2947 | | error_code = GetLastError(); |
2948 | | |
2949 | | libcerror_system_set_error( |
2950 | | error, |
2951 | | LIBCERROR_ERROR_DOMAIN_IO, |
2952 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2953 | | error_code, |
2954 | | "%s: unable to seek offset in file.", |
2955 | | function ); |
2956 | | |
2957 | | return( -1 ); |
2958 | | } |
2959 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2960 | | offset = (off64_t) large_integer_offset.QuadPart; |
2961 | | #else |
2962 | | offset = ( (off64_t) large_integer_offset.HighPart << 32 ) + large_integer_offset.LowPart; |
2963 | | #endif |
2964 | | |
2965 | | if( offset < 0 ) |
2966 | | { |
2967 | | libcerror_error_set( |
2968 | | error, |
2969 | | LIBCERROR_ERROR_DOMAIN_IO, |
2970 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2971 | | "%s: invalid offset: %" PRIi64 " returned.", |
2972 | | function, |
2973 | | offset ); |
2974 | | |
2975 | | return( -1 ); |
2976 | | } |
2977 | | internal_file->current_offset = offset; |
2978 | | |
2979 | | #if ( WINVER <= 0x0500 ) |
2980 | | if( libcfile_SetEndOfFile( |
2981 | | internal_file->handle ) == 0 ) |
2982 | | #else |
2983 | | if( SetEndOfFile( |
2984 | | internal_file->handle ) == 0 ) |
2985 | | #endif |
2986 | | { |
2987 | | error_code = GetLastError(); |
2988 | | |
2989 | | libcerror_system_set_error( |
2990 | | error, |
2991 | | LIBCERROR_ERROR_DOMAIN_IO, |
2992 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2993 | | error_code, |
2994 | | "%s: unable to resize file.", |
2995 | | function ); |
2996 | | |
2997 | | return( -1 ); |
2998 | | } |
2999 | | return( 1 ); |
3000 | | } |
3001 | | |
3002 | | #elif defined( HAVE_FTRUNCATE ) |
3003 | | |
3004 | | /* Resizes the file |
3005 | | * This function uses the POSIX truncate function or equivalent |
3006 | | * Returns 1 if successful or -1 on error |
3007 | | */ |
3008 | | int libcfile_file_resize( |
3009 | | libcfile_file_t *file, |
3010 | | size64_t size, |
3011 | | libcerror_error_t **error ) |
3012 | 0 | { |
3013 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3014 | 0 | static char *function = "libcfile_file_resize"; |
3015 | 0 | off_t offset = 0; |
3016 | |
|
3017 | 0 | if( file == NULL ) |
3018 | 0 | { |
3019 | 0 | libcerror_error_set( |
3020 | 0 | error, |
3021 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3022 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3023 | 0 | "%s: invalid file.", |
3024 | 0 | function ); |
3025 | |
|
3026 | 0 | return( -1 ); |
3027 | 0 | } |
3028 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3029 | |
|
3030 | 0 | if( internal_file->descriptor == -1 ) |
3031 | 0 | { |
3032 | 0 | libcerror_error_set( |
3033 | 0 | error, |
3034 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3035 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3036 | 0 | "%s: invalid file - missing descriptor.", |
3037 | 0 | function ); |
3038 | |
|
3039 | 0 | return( -1 ); |
3040 | 0 | } |
3041 | 0 | #if SIZEOF_OFF_T >= 8 |
3042 | 0 | if( size > (size64_t) INT64_MAX ) |
3043 | | #else |
3044 | | if( size > (size64_t) INT32_MAX ) |
3045 | | #endif |
3046 | 0 | { |
3047 | 0 | libcerror_error_set( |
3048 | 0 | error, |
3049 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3050 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
3051 | 0 | "%s: invalid size value exceeds maximum.", |
3052 | 0 | function ); |
3053 | |
|
3054 | 0 | return( -1 ); |
3055 | 0 | } |
3056 | 0 | if( ftruncate( |
3057 | 0 | internal_file->descriptor, |
3058 | 0 | (off_t) size ) != 0 ) |
3059 | 0 | { |
3060 | 0 | libcerror_system_set_error( |
3061 | 0 | error, |
3062 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3063 | 0 | LIBCERROR_IO_ERROR_GENERIC, |
3064 | 0 | errno, |
3065 | 0 | "%s: unable to resize file.", |
3066 | 0 | function ); |
3067 | |
|
3068 | 0 | return( -1 ); |
3069 | 0 | } |
3070 | 0 | offset = lseek( |
3071 | 0 | internal_file->descriptor, |
3072 | 0 | 0, |
3073 | 0 | SEEK_CUR ); |
3074 | |
|
3075 | 0 | if( offset < 0 ) |
3076 | 0 | { |
3077 | 0 | libcerror_system_set_error( |
3078 | 0 | error, |
3079 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3080 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
3081 | 0 | errno, |
3082 | 0 | "%s: unable to seek offset in file.", |
3083 | 0 | function ); |
3084 | |
|
3085 | 0 | return( -1 ); |
3086 | 0 | } |
3087 | 0 | internal_file->current_offset = (off64_t) offset; |
3088 | |
|
3089 | 0 | return( 1 ); |
3090 | 0 | } |
3091 | | |
3092 | | #else |
3093 | | #error Missing file truncate function |
3094 | | #endif |
3095 | | |
3096 | | /* Checks if the file is open |
3097 | | * Returns 1 if open, 0 if not or -1 on error |
3098 | | */ |
3099 | | int libcfile_file_is_open( |
3100 | | libcfile_file_t *file, |
3101 | | libcerror_error_t **error ) |
3102 | 0 | { |
3103 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3104 | 0 | static char *function = "libcfile_file_is_open"; |
3105 | |
|
3106 | 0 | if( file == NULL ) |
3107 | 0 | { |
3108 | 0 | libcerror_error_set( |
3109 | 0 | error, |
3110 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3111 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3112 | 0 | "%s: invalid file.", |
3113 | 0 | function ); |
3114 | |
|
3115 | 0 | return( -1 ); |
3116 | 0 | } |
3117 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3118 | |
|
3119 | | #if defined( WINAPI ) |
3120 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3121 | | #else |
3122 | 0 | if( internal_file->descriptor == -1 ) |
3123 | 0 | #endif |
3124 | 0 | { |
3125 | 0 | return( 0 ); |
3126 | 0 | } |
3127 | 0 | return( 1 ); |
3128 | 0 | } |
3129 | | |
3130 | | /* Retrieves the current offset in the file |
3131 | | * Returns 1 if successful or -1 on error |
3132 | | */ |
3133 | | int libcfile_file_get_offset( |
3134 | | libcfile_file_t *file, |
3135 | | off64_t *offset, |
3136 | | libcerror_error_t **error ) |
3137 | 0 | { |
3138 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3139 | 0 | static char *function = "libcfile_file_get_offset"; |
3140 | |
|
3141 | 0 | if( file == NULL ) |
3142 | 0 | { |
3143 | 0 | libcerror_error_set( |
3144 | 0 | error, |
3145 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3146 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3147 | 0 | "%s: invalid file.", |
3148 | 0 | function ); |
3149 | |
|
3150 | 0 | return( -1 ); |
3151 | 0 | } |
3152 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3153 | |
|
3154 | | #if defined( WINAPI ) |
3155 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3156 | | { |
3157 | | libcerror_error_set( |
3158 | | error, |
3159 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3160 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3161 | | "%s: invalid file - missing handle.", |
3162 | | function ); |
3163 | | |
3164 | | return( -1 ); |
3165 | | } |
3166 | | #else |
3167 | 0 | if( internal_file->descriptor == -1 ) |
3168 | 0 | { |
3169 | 0 | libcerror_error_set( |
3170 | 0 | error, |
3171 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3172 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3173 | 0 | "%s: invalid file - missing descriptor.", |
3174 | 0 | function ); |
3175 | |
|
3176 | 0 | return( -1 ); |
3177 | 0 | } |
3178 | 0 | #endif |
3179 | 0 | if( offset == NULL ) |
3180 | 0 | { |
3181 | 0 | libcerror_error_set( |
3182 | 0 | error, |
3183 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3184 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3185 | 0 | "%s: invalid offset.", |
3186 | 0 | function ); |
3187 | |
|
3188 | 0 | return( -1 ); |
3189 | 0 | } |
3190 | 0 | *offset = internal_file->current_offset; |
3191 | |
|
3192 | 0 | return( 1 ); |
3193 | 0 | } |
3194 | | |
3195 | | #if defined( WINAPI ) |
3196 | | |
3197 | | #if !defined( IOCTL_DISK_GET_LENGTH_INFO ) |
3198 | | #define IOCTL_DISK_GET_LENGTH_INFO \ |
3199 | | CTL_CODE( IOCTL_DISK_BASE, 0x0017, METHOD_BUFFERED, FILE_READ_ACCESS ) |
3200 | | |
3201 | | typedef struct |
3202 | | { |
3203 | | LARGE_INTEGER Length; |
3204 | | } |
3205 | | GET_LENGTH_INFORMATION; |
3206 | | |
3207 | | #endif /* !defined( IOCTL_DISK_GET_LENGTH_INFO ) */ |
3208 | | |
3209 | | /* Retrieves the size of the file |
3210 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
3211 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
3212 | | * Returns 1 if successful or -1 on error |
3213 | | */ |
3214 | | int libcfile_internal_file_get_size( |
3215 | | libcfile_internal_file_t *internal_file, |
3216 | | size64_t *size, |
3217 | | libcerror_error_t **error ) |
3218 | | { |
3219 | | DISK_GEOMETRY disk_geometry; |
3220 | | GET_LENGTH_INFORMATION length_information; |
3221 | | |
3222 | | static char *function = "libcfile_internal_file_get_size"; |
3223 | | LARGE_INTEGER large_integer_size = LIBCFILE_LARGE_INTEGER_ZERO; |
3224 | | size_t read_count = 0; |
3225 | | uint32_t error_code = 0; |
3226 | | int result = 0; |
3227 | | |
3228 | | if( internal_file == NULL ) |
3229 | | { |
3230 | | libcerror_error_set( |
3231 | | error, |
3232 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3233 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3234 | | "%s: invalid file.", |
3235 | | function ); |
3236 | | |
3237 | | return( -1 ); |
3238 | | } |
3239 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3240 | | { |
3241 | | libcerror_error_set( |
3242 | | error, |
3243 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3244 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3245 | | "%s: invalid file - missing handle.", |
3246 | | function ); |
3247 | | |
3248 | | return( -1 ); |
3249 | | } |
3250 | | if( size == NULL ) |
3251 | | { |
3252 | | libcerror_error_set( |
3253 | | error, |
3254 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3255 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3256 | | "%s: invalid size.", |
3257 | | function ); |
3258 | | |
3259 | | return( -1 ); |
3260 | | } |
3261 | | result = libcfile_file_is_device( |
3262 | | (libcfile_file_t *) internal_file, |
3263 | | error ); |
3264 | | |
3265 | | if( result == -1 ) |
3266 | | { |
3267 | | libcerror_error_set( |
3268 | | error, |
3269 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3270 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3271 | | "%s: unable to determine if file is a device.", |
3272 | | function ); |
3273 | | |
3274 | | return( -1 ); |
3275 | | } |
3276 | | else if( result != 0 ) |
3277 | | { |
3278 | | #if defined( LIBCFILE_HAVE_IO_CONTROL ) |
3279 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3280 | | internal_file, |
3281 | | IOCTL_DISK_GET_LENGTH_INFO, |
3282 | | NULL, |
3283 | | 0, |
3284 | | (uint8_t *) &length_information, |
3285 | | sizeof( GET_LENGTH_INFORMATION ), |
3286 | | &error_code, |
3287 | | error ); |
3288 | | |
3289 | | if( read_count == -1 ) |
3290 | | { |
3291 | | libcerror_error_set( |
3292 | | error, |
3293 | | LIBCERROR_ERROR_DOMAIN_IO, |
3294 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3295 | | "%s: unable to query device for: IOCTL_DISK_GET_LENGTH_INFO.", |
3296 | | function ); |
3297 | | |
3298 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3299 | | if( libcnotify_verbose != 0 ) |
3300 | | { |
3301 | | if( ( error != NULL ) |
3302 | | && ( *error != NULL ) ) |
3303 | | { |
3304 | | libcnotify_print_error_backtrace( |
3305 | | *error ); |
3306 | | } |
3307 | | } |
3308 | | #endif |
3309 | | libcerror_error_free( |
3310 | | error ); |
3311 | | |
3312 | | if( error_code == ERROR_NOT_SUPPORTED ) |
3313 | | { |
3314 | | /* A floppy device does not support IOCTL_DISK_GET_LENGTH_INFO |
3315 | | */ |
3316 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3317 | | internal_file, |
3318 | | IOCTL_DISK_GET_DRIVE_GEOMETRY, |
3319 | | NULL, |
3320 | | 0, |
3321 | | (uint8_t *) &disk_geometry, |
3322 | | sizeof( DISK_GEOMETRY ), |
3323 | | &error_code, |
3324 | | error ); |
3325 | | |
3326 | | if( read_count == -1 ) |
3327 | | { |
3328 | | libcerror_error_set( |
3329 | | error, |
3330 | | LIBCERROR_ERROR_DOMAIN_IO, |
3331 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3332 | | "%s: unable to query device for: IOCTL_DISK_GET_DRIVE_GEOMETRY.", |
3333 | | function ); |
3334 | | |
3335 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3336 | | if( libcnotify_verbose != 0 ) |
3337 | | { |
3338 | | if( ( error != NULL ) |
3339 | | && ( *error != NULL ) ) |
3340 | | { |
3341 | | libcnotify_print_error_backtrace( |
3342 | | *error ); |
3343 | | } |
3344 | | } |
3345 | | #endif |
3346 | | libcerror_error_free( |
3347 | | error ); |
3348 | | } |
3349 | | else |
3350 | | { |
3351 | | *size = disk_geometry.Cylinders.QuadPart; |
3352 | | *size *= disk_geometry.TracksPerCylinder; |
3353 | | *size *= disk_geometry.SectorsPerTrack; |
3354 | | *size *= disk_geometry.BytesPerSector; |
3355 | | } |
3356 | | } |
3357 | | } |
3358 | | else |
3359 | | { |
3360 | | *size = (size64_t) length_information.Length.HighPart << 32; |
3361 | | *size += (uint32_t) length_information.Length.LowPart; |
3362 | | } |
3363 | | #else |
3364 | | libcerror_error_set( |
3365 | | error, |
3366 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3367 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3368 | | "%s: unable to determine size of device.", |
3369 | | function ); |
3370 | | |
3371 | | return( -1 ); |
3372 | | |
3373 | | #endif /* defined( LIBCFILE_HAVE_IO_CONTROL ) */ |
3374 | | } |
3375 | | else |
3376 | | { |
3377 | | #if ( WINVER <= 0x0500 ) |
3378 | | if( libcfile_GetFileSizeEx( |
3379 | | internal_file->handle, |
3380 | | &large_integer_size ) == 0 ) |
3381 | | #else |
3382 | | if( GetFileSizeEx( |
3383 | | internal_file->handle, |
3384 | | &large_integer_size ) == 0 ) |
3385 | | #endif |
3386 | | { |
3387 | | libcerror_error_set( |
3388 | | error, |
3389 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3390 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3391 | | "%s: unable to retrieve file size.", |
3392 | | function ); |
3393 | | |
3394 | | return( -1 ); |
3395 | | } |
3396 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x520 |
3397 | | *size = (size64_t) large_integer_size.QuadPart; |
3398 | | #else |
3399 | | *size = (size64_t) large_integer_size.HighPart << 32; |
3400 | | *size += (uint32_t) large_integer_size.LowPart; |
3401 | | #endif |
3402 | | } |
3403 | | return( 1 ); |
3404 | | } |
3405 | | |
3406 | | #elif defined( HAVE_FSTAT ) |
3407 | | |
3408 | | /* Retrieves the size of the file |
3409 | | * This function uses the POSIX fstat function or equivalent |
3410 | | * Returns 1 if successful or -1 on error |
3411 | | */ |
3412 | | int libcfile_internal_file_get_size( |
3413 | | libcfile_internal_file_t *internal_file, |
3414 | | size64_t *size, |
3415 | | libcerror_error_t **error ) |
3416 | 0 | { |
3417 | 0 | struct stat file_statistics; |
3418 | |
|
3419 | 0 | static char *function = "libcfile_internal_file_get_size"; |
3420 | 0 | size64_t safe_size = 0; |
3421 | 0 | ssize_t read_count = 0; |
3422 | 0 | off64_t current_offset = 0; |
3423 | 0 | off64_t offset = 0; |
3424 | |
|
3425 | 0 | #if defined( BLKGETSIZE64 ) || defined( DIOCGMEDIASIZE ) || defined( DIOCGDINFO ) || ( defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) ) |
3426 | 0 | uint32_t error_code = 0; |
3427 | 0 | #endif |
3428 | |
|
3429 | | #if !defined( DIOCGMEDIASIZE ) && defined( DIOCGDINFO ) |
3430 | | struct disklabel disk_label; |
3431 | | #endif |
3432 | | #if defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) |
3433 | | uint64_t block_count = 0; |
3434 | | uint32_t bytes_per_sector = 0; |
3435 | | #endif |
3436 | |
|
3437 | 0 | if( internal_file == NULL ) |
3438 | 0 | { |
3439 | 0 | libcerror_error_set( |
3440 | 0 | error, |
3441 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3442 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3443 | 0 | "%s: invalid file.", |
3444 | 0 | function ); |
3445 | |
|
3446 | 0 | return( -1 ); |
3447 | 0 | } |
3448 | 0 | if( internal_file->descriptor == -1 ) |
3449 | 0 | { |
3450 | 0 | libcerror_error_set( |
3451 | 0 | error, |
3452 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3453 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3454 | 0 | "%s: invalid file - missing descriptor.", |
3455 | 0 | function ); |
3456 | |
|
3457 | 0 | return( -1 ); |
3458 | 0 | } |
3459 | 0 | if( size == NULL ) |
3460 | 0 | { |
3461 | 0 | libcerror_error_set( |
3462 | 0 | error, |
3463 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3464 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3465 | 0 | "%s: invalid size.", |
3466 | 0 | function ); |
3467 | |
|
3468 | 0 | return( -1 ); |
3469 | 0 | } |
3470 | 0 | if( memory_set( |
3471 | 0 | &file_statistics, |
3472 | 0 | 0, |
3473 | 0 | sizeof( struct stat ) ) == NULL ) |
3474 | 0 | { |
3475 | 0 | libcerror_error_set( |
3476 | 0 | error, |
3477 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
3478 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
3479 | 0 | "%s: unable to clear file statistics.", |
3480 | 0 | function ); |
3481 | |
|
3482 | 0 | return( -1 ); |
3483 | 0 | } |
3484 | 0 | if( fstat( |
3485 | 0 | internal_file->descriptor, |
3486 | 0 | &file_statistics ) != 0 ) |
3487 | 0 | { |
3488 | 0 | libcerror_error_set( |
3489 | 0 | error, |
3490 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3491 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3492 | 0 | "%s: unable to retrieve file statistics.", |
3493 | 0 | function ); |
3494 | |
|
3495 | 0 | return( -1 ); |
3496 | 0 | } |
3497 | 0 | if( S_ISBLK( file_statistics.st_mode ) |
3498 | 0 | || S_ISCHR( file_statistics.st_mode ) ) |
3499 | 0 | { |
3500 | 0 | #if defined( LIBCFILE_HAVE_IO_CONTROL ) |
3501 | 0 | #if defined( BLKGETSIZE64 ) |
3502 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3503 | 0 | internal_file, |
3504 | 0 | (uint32_t) BLKGETSIZE64, |
3505 | 0 | NULL, |
3506 | 0 | 0, |
3507 | 0 | (uint8_t *) &safe_size, |
3508 | 0 | 8, |
3509 | 0 | &error_code, |
3510 | 0 | error ); |
3511 | |
|
3512 | 0 | if( read_count == -1 ) |
3513 | 0 | { |
3514 | 0 | libcerror_error_set( |
3515 | 0 | error, |
3516 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3517 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3518 | 0 | "%s: unable to query device for: BLKGETSIZE64.", |
3519 | 0 | function ); |
3520 | |
|
3521 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3522 | | if( libcnotify_verbose != 0 ) |
3523 | | { |
3524 | | if( ( error != NULL ) |
3525 | | && ( *error != NULL ) ) |
3526 | | { |
3527 | | libcnotify_print_error_backtrace( |
3528 | | *error ); |
3529 | | } |
3530 | | } |
3531 | | #endif |
3532 | 0 | libcerror_error_free( |
3533 | 0 | error ); |
3534 | 0 | } |
3535 | | #elif defined( DIOCGMEDIASIZE ) |
3536 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3537 | | internal_file, |
3538 | | (uint32_t) DIOCGMEDIASIZE, |
3539 | | NULL, |
3540 | | 0, |
3541 | | (uint8_t *) &safe_size, |
3542 | | 8, |
3543 | | &error_code, |
3544 | | error ); |
3545 | | |
3546 | | if( read_count == -1 ) |
3547 | | { |
3548 | | libcerror_error_set( |
3549 | | error, |
3550 | | LIBCERROR_ERROR_DOMAIN_IO, |
3551 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3552 | | "%s: unable to query device for: DIOCGMEDIASIZE.", |
3553 | | function ); |
3554 | | |
3555 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3556 | | if( libcnotify_verbose != 0 ) |
3557 | | { |
3558 | | if( ( error != NULL ) |
3559 | | && ( *error != NULL ) ) |
3560 | | { |
3561 | | libcnotify_print_error_backtrace( |
3562 | | *error ); |
3563 | | } |
3564 | | } |
3565 | | #endif |
3566 | | libcerror_error_free( |
3567 | | error ); |
3568 | | } |
3569 | | #elif defined( DIOCGDINFO ) |
3570 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3571 | | internal_file, |
3572 | | (uint32_t) DIOCGDINFO, |
3573 | | NULL, |
3574 | | 0, |
3575 | | (uint8_t *) &disk_label, |
3576 | | sizeof( struct disklabel ), |
3577 | | &error_code, |
3578 | | error ); |
3579 | | |
3580 | | if( read_count == -1 ) |
3581 | | { |
3582 | | libcerror_error_set( |
3583 | | error, |
3584 | | LIBCERROR_ERROR_DOMAIN_IO, |
3585 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3586 | | "%s: unable to query device for: DIOCGDINFO.", |
3587 | | function ); |
3588 | | |
3589 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3590 | | if( libcnotify_verbose != 0 ) |
3591 | | { |
3592 | | if( ( error != NULL ) |
3593 | | && ( *error != NULL ) ) |
3594 | | { |
3595 | | libcnotify_print_error_backtrace( |
3596 | | *error ); |
3597 | | } |
3598 | | } |
3599 | | #endif |
3600 | | libcerror_error_free( |
3601 | | error ); |
3602 | | } |
3603 | | else |
3604 | | { |
3605 | | safe_size = disk_label.d_secperunit * disk_label.d_secsize; |
3606 | | } |
3607 | | #elif defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) |
3608 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3609 | | internal_file, |
3610 | | (uint32_t) DKIOCGETBLOCKSIZE, |
3611 | | NULL, |
3612 | | 0, |
3613 | | (uint8_t *) &bytes_per_sector, |
3614 | | 4, |
3615 | | &error_code, |
3616 | | error ); |
3617 | | |
3618 | | if( read_count == -1 ) |
3619 | | { |
3620 | | libcerror_error_set( |
3621 | | error, |
3622 | | LIBCERROR_ERROR_DOMAIN_IO, |
3623 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3624 | | "%s: unable to query device for: DKIOCGETBLOCKSIZE.", |
3625 | | function ); |
3626 | | |
3627 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3628 | | if( libcnotify_verbose != 0 ) |
3629 | | { |
3630 | | if( ( error != NULL ) |
3631 | | && ( *error != NULL ) ) |
3632 | | { |
3633 | | libcnotify_print_error_backtrace( |
3634 | | *error ); |
3635 | | } |
3636 | | } |
3637 | | #endif |
3638 | | libcerror_error_free( |
3639 | | error ); |
3640 | | } |
3641 | | else |
3642 | | { |
3643 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3644 | | internal_file, |
3645 | | (uint32_t) DKIOCGETBLOCKCOUNT, |
3646 | | NULL, |
3647 | | 0, |
3648 | | (uint8_t *) &block_count, |
3649 | | 4, |
3650 | | &error_code, |
3651 | | error ); |
3652 | | |
3653 | | if( read_count == -1 ) |
3654 | | { |
3655 | | libcerror_error_set( |
3656 | | error, |
3657 | | LIBCERROR_ERROR_DOMAIN_IO, |
3658 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3659 | | "%s: unable to query device for: DKIOCGETBLOCKCOUNT.", |
3660 | | function ); |
3661 | | |
3662 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3663 | | if( libcnotify_verbose != 0 ) |
3664 | | { |
3665 | | if( ( error != NULL ) |
3666 | | && ( *error != NULL ) ) |
3667 | | { |
3668 | | libcnotify_print_error_backtrace( |
3669 | | *error ); |
3670 | | } |
3671 | | } |
3672 | | #endif |
3673 | | libcerror_error_free( |
3674 | | error ); |
3675 | | } |
3676 | | else |
3677 | | { |
3678 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3679 | | if( libcnotify_verbose != 0 ) |
3680 | | { |
3681 | | libcnotify_printf( |
3682 | | "%s: block size: %" PRIu32 " block count: %" PRIu64 " ", |
3683 | | function, |
3684 | | bytes_per_sector, |
3685 | | block_count ); |
3686 | | } |
3687 | | #endif |
3688 | | safe_size = (size64_t) ( block_count * bytes_per_sector ); |
3689 | | } |
3690 | | } |
3691 | | #endif |
3692 | 0 | #endif /* defined( LIBCFILE_HAVE_IO_CONTROL ) */ |
3693 | |
|
3694 | 0 | if( read_count <= 0 ) |
3695 | 0 | { |
3696 | | /* Try to seek the end of the file and determine the size based on the offset |
3697 | | */ |
3698 | 0 | if( libcfile_file_get_offset( |
3699 | 0 | (libcfile_file_t *) internal_file, |
3700 | 0 | ¤t_offset, |
3701 | 0 | error ) != 1 ) |
3702 | 0 | { |
3703 | 0 | libcerror_error_set( |
3704 | 0 | error, |
3705 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3706 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3707 | 0 | "%s: unable to retrieve current offset.", |
3708 | 0 | function ); |
3709 | |
|
3710 | 0 | return( -1 ); |
3711 | 0 | } |
3712 | 0 | offset = libcfile_file_seek_offset( |
3713 | 0 | (libcfile_file_t *) internal_file, |
3714 | 0 | 0, |
3715 | 0 | SEEK_END, |
3716 | 0 | error ); |
3717 | |
|
3718 | 0 | if( offset == -1 ) |
3719 | 0 | { |
3720 | 0 | libcerror_error_set( |
3721 | 0 | error, |
3722 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3723 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
3724 | 0 | "%s: unable to seek end of file.", |
3725 | 0 | function ); |
3726 | |
|
3727 | 0 | return( -1 ); |
3728 | 0 | } |
3729 | 0 | safe_size = (size64_t) offset; |
3730 | |
|
3731 | 0 | offset = libcfile_file_seek_offset( |
3732 | 0 | (libcfile_file_t *) internal_file, |
3733 | 0 | current_offset, |
3734 | 0 | SEEK_SET, |
3735 | 0 | error ); |
3736 | |
|
3737 | 0 | if( offset == -1 ) |
3738 | 0 | { |
3739 | 0 | libcerror_error_set( |
3740 | 0 | error, |
3741 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3742 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
3743 | 0 | "%s: unable to seek offset: %" PRIi64 ".", |
3744 | 0 | function, |
3745 | 0 | current_offset ); |
3746 | |
|
3747 | 0 | return( -1 ); |
3748 | 0 | } |
3749 | 0 | } |
3750 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3751 | | if( libcnotify_verbose != 0 ) |
3752 | | { |
3753 | | libcnotify_printf( |
3754 | | "%s: device media size: %" PRIu64 "\n", |
3755 | | function, |
3756 | | safe_size ); |
3757 | | } |
3758 | | #endif |
3759 | 0 | } |
3760 | 0 | else |
3761 | 0 | { |
3762 | 0 | safe_size = (size64_t) file_statistics.st_size; |
3763 | 0 | } |
3764 | 0 | *size = safe_size; |
3765 | |
|
3766 | 0 | return( 1 ); |
3767 | 0 | } |
3768 | | |
3769 | | #else |
3770 | | #error Missing file get size function |
3771 | | #endif |
3772 | | |
3773 | | /* Retrieves the size of the file |
3774 | | * Returns 1 if successful or -1 on error |
3775 | | */ |
3776 | | int libcfile_file_get_size( |
3777 | | libcfile_file_t *file, |
3778 | | size64_t *size, |
3779 | | libcerror_error_t **error ) |
3780 | 0 | { |
3781 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3782 | 0 | static char *function = "libcfile_file_get_size"; |
3783 | |
|
3784 | 0 | if( file == NULL ) |
3785 | 0 | { |
3786 | 0 | libcerror_error_set( |
3787 | 0 | error, |
3788 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3789 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3790 | 0 | "%s: invalid file.", |
3791 | 0 | function ); |
3792 | |
|
3793 | 0 | return( -1 ); |
3794 | 0 | } |
3795 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3796 | |
|
3797 | 0 | if( size == NULL ) |
3798 | 0 | { |
3799 | 0 | libcerror_error_set( |
3800 | 0 | error, |
3801 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3802 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3803 | 0 | "%s: invalid size.", |
3804 | 0 | function ); |
3805 | |
|
3806 | 0 | return( -1 ); |
3807 | 0 | } |
3808 | 0 | *size = internal_file->size; |
3809 | |
|
3810 | 0 | return( 1 ); |
3811 | 0 | } |
3812 | | |
3813 | | #if defined( WINAPI ) |
3814 | | |
3815 | | /* Determines if a file is a device |
3816 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
3817 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
3818 | | * Returns 1 if true, 0 if not or -1 on error |
3819 | | */ |
3820 | | int libcfile_file_is_device( |
3821 | | libcfile_file_t *file, |
3822 | | libcerror_error_t **error ) |
3823 | | { |
3824 | | libcfile_internal_file_t *internal_file = NULL; |
3825 | | static char *function = "libcfile_file_is_device"; |
3826 | | DWORD file_type = 0; |
3827 | | int result = 0; |
3828 | | |
3829 | | if( file == NULL ) |
3830 | | { |
3831 | | libcerror_error_set( |
3832 | | error, |
3833 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3834 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3835 | | "%s: invalid file.", |
3836 | | function ); |
3837 | | |
3838 | | return( -1 ); |
3839 | | } |
3840 | | internal_file = (libcfile_internal_file_t *) file; |
3841 | | |
3842 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3843 | | { |
3844 | | libcerror_error_set( |
3845 | | error, |
3846 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3847 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3848 | | "%s: invalid file - missing handle.", |
3849 | | function ); |
3850 | | |
3851 | | return( -1 ); |
3852 | | } |
3853 | | /* TODO what about FILE_ATTRIBUTE_DEVICE using GetFileAttributes() */ |
3854 | | |
3855 | | /* Use the GetFileType function to rule out certain file types |
3856 | | * like pipes, sockets, etc. |
3857 | | */ |
3858 | | #if ( WINVER <= 0x0500 ) |
3859 | | file_type = libcfile_GetFileType( |
3860 | | internal_file->handle ); |
3861 | | #else |
3862 | | file_type = GetFileType( |
3863 | | internal_file->handle ); |
3864 | | #endif |
3865 | | |
3866 | | if( file_type == FILE_TYPE_UNKNOWN ) |
3867 | | { |
3868 | | libcerror_error_set( |
3869 | | error, |
3870 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3871 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3872 | | "%s: unable to determine file type.", |
3873 | | function ); |
3874 | | |
3875 | | return( -1 ); |
3876 | | } |
3877 | | else if( file_type == FILE_TYPE_DISK ) |
3878 | | { |
3879 | | if( internal_file->is_device_filename ) |
3880 | | { |
3881 | | result = 1; |
3882 | | } |
3883 | | } |
3884 | | return( result ); |
3885 | | } |
3886 | | |
3887 | | #elif defined( HAVE_FSTAT ) |
3888 | | |
3889 | | /* Determines if a file is a device |
3890 | | * This function uses the POSIX fstat function or equivalent |
3891 | | * Returns 1 if true, 0 if not or -1 on error |
3892 | | */ |
3893 | | int libcfile_file_is_device( |
3894 | | libcfile_file_t *file, |
3895 | | libcerror_error_t **error ) |
3896 | 0 | { |
3897 | 0 | struct stat file_statistics; |
3898 | |
|
3899 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3900 | 0 | static char *function = "libcfile_file_is_device"; |
3901 | 0 | int result = 0; |
3902 | |
|
3903 | 0 | if( file == NULL ) |
3904 | 0 | { |
3905 | 0 | libcerror_error_set( |
3906 | 0 | error, |
3907 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3908 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3909 | 0 | "%s: invalid file.", |
3910 | 0 | function ); |
3911 | |
|
3912 | 0 | return( -1 ); |
3913 | 0 | } |
3914 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3915 | |
|
3916 | 0 | if( internal_file->descriptor == -1 ) |
3917 | 0 | { |
3918 | 0 | libcerror_error_set( |
3919 | 0 | error, |
3920 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3921 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3922 | 0 | "%s: invalid file - missing descriptor.", |
3923 | 0 | function ); |
3924 | |
|
3925 | 0 | return( -1 ); |
3926 | 0 | } |
3927 | 0 | if( memory_set( |
3928 | 0 | &file_statistics, |
3929 | 0 | 0, |
3930 | 0 | sizeof( struct stat ) ) == NULL ) |
3931 | 0 | { |
3932 | 0 | libcerror_error_set( |
3933 | 0 | error, |
3934 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
3935 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
3936 | 0 | "%s: unable to clear file statistics.", |
3937 | 0 | function ); |
3938 | |
|
3939 | 0 | return( -1 ); |
3940 | 0 | } |
3941 | 0 | if( fstat( |
3942 | 0 | internal_file->descriptor, |
3943 | 0 | &file_statistics ) != 0 ) |
3944 | 0 | { |
3945 | 0 | libcerror_error_set( |
3946 | 0 | error, |
3947 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3948 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3949 | 0 | "%s: unable to retrieve file statistics.", |
3950 | 0 | function ); |
3951 | |
|
3952 | 0 | return( -1 ); |
3953 | 0 | } |
3954 | 0 | if( S_ISBLK( file_statistics.st_mode ) |
3955 | 0 | || S_ISCHR( file_statistics.st_mode ) ) |
3956 | 0 | { |
3957 | 0 | result = 1; |
3958 | 0 | } |
3959 | 0 | return( result ); |
3960 | 0 | } |
3961 | | |
3962 | | #else |
3963 | | #error Missing file is device function |
3964 | | #endif |
3965 | | |
3966 | | /* Read data from a device file using IO control |
3967 | | * This function uses the POSIX ioctl function or WINAPI DeviceIoControl |
3968 | | * Returns the number of bytes read if successful or -1 on error |
3969 | | */ |
3970 | | ssize_t libcfile_internal_file_io_control_read_with_error_code( |
3971 | | libcfile_internal_file_t *internal_file, |
3972 | | uint32_t control_code, |
3973 | | uint8_t *control_data, |
3974 | | size_t control_data_size, |
3975 | | uint8_t *data, |
3976 | | size_t data_size, |
3977 | | uint32_t *error_code, |
3978 | | libcerror_error_t **error ) |
3979 | 0 | { |
3980 | 0 | static char *function = "libcfile_internal_file_io_control_read_with_error_code"; |
3981 | |
|
3982 | | #if defined( WINAPI ) |
3983 | | BOOL result = 0; |
3984 | | DWORD response_count = 0; |
3985 | | #endif |
3986 | |
|
3987 | 0 | if( internal_file == NULL ) |
3988 | 0 | { |
3989 | 0 | libcerror_error_set( |
3990 | 0 | error, |
3991 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3992 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3993 | 0 | "%s: invalid file.", |
3994 | 0 | function ); |
3995 | |
|
3996 | 0 | return( -1 ); |
3997 | 0 | } |
3998 | | #if defined( WINAPI ) |
3999 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
4000 | | { |
4001 | | libcerror_error_set( |
4002 | | error, |
4003 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4004 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4005 | | "%s: invalid file - missing handle.", |
4006 | | function ); |
4007 | | |
4008 | | return( -1 ); |
4009 | | } |
4010 | | #else |
4011 | 0 | if( internal_file->descriptor == -1 ) |
4012 | 0 | { |
4013 | 0 | libcerror_error_set( |
4014 | 0 | error, |
4015 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4016 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4017 | 0 | "%s: invalid file - missing descriptor.", |
4018 | 0 | function ); |
4019 | |
|
4020 | 0 | return( -1 ); |
4021 | 0 | } |
4022 | 0 | #endif |
4023 | 0 | if( control_data == NULL ) |
4024 | 0 | { |
4025 | 0 | if( control_data_size != 0 ) |
4026 | 0 | { |
4027 | 0 | libcerror_error_set( |
4028 | 0 | error, |
4029 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4030 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4031 | 0 | "%s: invalid control data size value exceeds maximum.", |
4032 | 0 | function ); |
4033 | |
|
4034 | 0 | return( -1 ); |
4035 | 0 | } |
4036 | 0 | } |
4037 | 0 | else |
4038 | 0 | { |
4039 | 0 | #if ( UINT32_MAX < SSIZE_MAX ) |
4040 | 0 | if( control_data_size > (size_t) UINT32_MAX ) |
4041 | | #else |
4042 | | if( control_data_size > (size_t) SSIZE_MAX ) |
4043 | | #endif |
4044 | 0 | { |
4045 | 0 | libcerror_error_set( |
4046 | 0 | error, |
4047 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4048 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4049 | 0 | "%s: invalid control data size value exceeds maximum.", |
4050 | 0 | function ); |
4051 | |
|
4052 | 0 | return( -1 ); |
4053 | 0 | } |
4054 | 0 | } |
4055 | 0 | if( data == NULL ) |
4056 | 0 | { |
4057 | 0 | if( data_size != 0 ) |
4058 | 0 | { |
4059 | 0 | libcerror_error_set( |
4060 | 0 | error, |
4061 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4062 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4063 | 0 | "%s: invalid data size value exceeds maximum.", |
4064 | 0 | function ); |
4065 | |
|
4066 | 0 | return( -1 ); |
4067 | 0 | } |
4068 | 0 | } |
4069 | 0 | else |
4070 | 0 | { |
4071 | 0 | #if ( UINT32_MAX < SSIZE_MAX ) |
4072 | 0 | if( data_size > (size_t) UINT32_MAX ) |
4073 | | #else |
4074 | | if( data_size > (size_t) SSIZE_MAX ) |
4075 | | #endif |
4076 | 0 | { |
4077 | 0 | libcerror_error_set( |
4078 | 0 | error, |
4079 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4080 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4081 | 0 | "%s: invalid data size value exceeds maximum.", |
4082 | 0 | function ); |
4083 | |
|
4084 | 0 | return( -1 ); |
4085 | 0 | } |
4086 | 0 | } |
4087 | 0 | if( error_code == NULL ) |
4088 | 0 | { |
4089 | 0 | libcerror_error_set( |
4090 | 0 | error, |
4091 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4092 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4093 | 0 | "%s: invalid error code.", |
4094 | 0 | function ); |
4095 | |
|
4096 | 0 | return( -1 ); |
4097 | 0 | } |
4098 | | #if defined( WINAPI ) |
4099 | | result = DeviceIoControl( |
4100 | | internal_file->handle, |
4101 | | (DWORD) control_code, |
4102 | | control_data, |
4103 | | (DWORD) control_data_size, |
4104 | | data, |
4105 | | (DWORD) data_size, |
4106 | | &response_count, |
4107 | | NULL ); |
4108 | | |
4109 | | if( result == FALSE ) |
4110 | | { |
4111 | | *error_code = (uint32_t) GetLastError(); |
4112 | | |
4113 | | /* TODO: handle if( *error_code == ERROR_MORE_DATA ) */ |
4114 | | |
4115 | | libcerror_system_set_error( |
4116 | | error, |
4117 | | LIBCERROR_ERROR_DOMAIN_IO, |
4118 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4119 | | *error_code, |
4120 | | "%s: unable to IO control device.", |
4121 | | function ); |
4122 | | |
4123 | | return( -1 ); |
4124 | | } |
4125 | | #if ( SSIZE_MAX < UINT32_MAX ) |
4126 | | if( response_count > (size_t) SSIZE_MAX ) |
4127 | | { |
4128 | | libcerror_error_set( |
4129 | | error, |
4130 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4131 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
4132 | | "%s: invalid response count value out of bounds.", |
4133 | | function ); |
4134 | | |
4135 | | return( -1 ); |
4136 | | } |
4137 | | #endif |
4138 | | return( (ssize_t) response_count ); |
4139 | | |
4140 | | #elif defined( HAVE_IOCTL ) |
4141 | 0 | if( control_data != NULL ) |
4142 | 0 | { |
4143 | 0 | libcerror_error_set( |
4144 | 0 | error, |
4145 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4146 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
4147 | 0 | "%s: unsupported control data.", |
4148 | 0 | function ); |
4149 | |
|
4150 | 0 | return( -1 ); |
4151 | 0 | } |
4152 | 0 | if( ioctl( |
4153 | 0 | internal_file->descriptor, |
4154 | 0 | (int) control_code, |
4155 | 0 | data ) == -1 ) |
4156 | 0 | { |
4157 | 0 | *error_code = (uint32_t) errno; |
4158 | |
|
4159 | 0 | libcerror_system_set_error( |
4160 | 0 | error, |
4161 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4162 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4163 | 0 | *error_code, |
4164 | 0 | "%s: unable to IO control device.", |
4165 | 0 | function ); |
4166 | |
|
4167 | 0 | return( -1 ); |
4168 | 0 | } |
4169 | 0 | return( (size_t) data_size ); |
4170 | | #else |
4171 | | libcerror_error_set( |
4172 | | error, |
4173 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4174 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4175 | | "%s: missing IO control support.", |
4176 | | function ); |
4177 | | |
4178 | | return( -1 ); |
4179 | | |
4180 | | #endif /* defined( HAVE_IOCTL ) || defined( WINAPI ) */ |
4181 | 0 | } |
4182 | | |
4183 | | /* Read data from a device file using IO control |
4184 | | * Returns the number of bytes read if successful or -1 on error |
4185 | | */ |
4186 | | ssize_t libcfile_file_io_control_read( |
4187 | | libcfile_file_t *file, |
4188 | | uint32_t control_code, |
4189 | | uint8_t *control_data, |
4190 | | size_t control_data_size, |
4191 | | uint8_t *data, |
4192 | | size_t data_size, |
4193 | | libcerror_error_t **error ) |
4194 | 0 | { |
4195 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4196 | 0 | static char *function = "libcfile_file_io_control_read"; |
4197 | 0 | ssize_t read_count = 0; |
4198 | 0 | uint32_t error_code = 0; |
4199 | |
|
4200 | 0 | if( file == NULL ) |
4201 | 0 | { |
4202 | 0 | libcerror_error_set( |
4203 | 0 | error, |
4204 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4205 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4206 | 0 | "%s: invalid file.", |
4207 | 0 | function ); |
4208 | |
|
4209 | 0 | return( -1 ); |
4210 | 0 | } |
4211 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4212 | |
|
4213 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4214 | 0 | internal_file, |
4215 | 0 | control_code, |
4216 | 0 | control_data, |
4217 | 0 | control_data_size, |
4218 | 0 | data, |
4219 | 0 | data_size, |
4220 | 0 | &error_code, |
4221 | 0 | error ); |
4222 | |
|
4223 | 0 | if( read_count == -1 ) |
4224 | 0 | { |
4225 | 0 | libcerror_error_set( |
4226 | 0 | error, |
4227 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4228 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4229 | 0 | "%s: unable to to IO control device.", |
4230 | 0 | function ); |
4231 | |
|
4232 | 0 | return( -1 ); |
4233 | 0 | } |
4234 | 0 | return( read_count ); |
4235 | 0 | } |
4236 | | |
4237 | | /* Read data from a device file using IO control |
4238 | | * Returns the number of bytes read if successful or -1 on error |
4239 | | */ |
4240 | | ssize_t libcfile_file_io_control_read_with_error_code( |
4241 | | libcfile_file_t *file, |
4242 | | uint32_t control_code, |
4243 | | uint8_t *control_data, |
4244 | | size_t control_data_size, |
4245 | | uint8_t *data, |
4246 | | size_t data_size, |
4247 | | uint32_t *error_code, |
4248 | | libcerror_error_t **error ) |
4249 | 0 | { |
4250 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4251 | 0 | static char *function = "libcfile_file_io_control_read_with_error_code"; |
4252 | 0 | ssize_t read_count = 0; |
4253 | |
|
4254 | 0 | if( file == NULL ) |
4255 | 0 | { |
4256 | 0 | libcerror_error_set( |
4257 | 0 | error, |
4258 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4259 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4260 | 0 | "%s: invalid file.", |
4261 | 0 | function ); |
4262 | |
|
4263 | 0 | return( -1 ); |
4264 | 0 | } |
4265 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4266 | |
|
4267 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4268 | 0 | internal_file, |
4269 | 0 | control_code, |
4270 | 0 | control_data, |
4271 | 0 | control_data_size, |
4272 | 0 | data, |
4273 | 0 | data_size, |
4274 | 0 | error_code, |
4275 | 0 | error ); |
4276 | |
|
4277 | 0 | if( read_count == -1 ) |
4278 | 0 | { |
4279 | 0 | libcerror_error_set( |
4280 | 0 | error, |
4281 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4282 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4283 | 0 | "%s: unable to to IO control device.", |
4284 | 0 | function ); |
4285 | |
|
4286 | 0 | return( -1 ); |
4287 | 0 | } |
4288 | 0 | return( read_count ); |
4289 | 0 | } |
4290 | | |
4291 | | /* On some versions of Linux the FADVISE definions seem to be missing from fcntl.h |
4292 | | */ |
4293 | | #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) |
4294 | | |
4295 | | #if !defined( POSIX_FADV_NORMAL ) |
4296 | | #define POSIX_FADV_NORMAL 0 |
4297 | | #endif |
4298 | | |
4299 | | #if !defined( POSIX_FADV_RANDOM ) |
4300 | | #define POSIX_FADV_RANDOM 1 |
4301 | | #endif |
4302 | | |
4303 | | #if !defined( POSIX_FADV_SEQUENTIAL ) |
4304 | | #define POSIX_FADV_SEQUENTIAL 2 |
4305 | | #endif |
4306 | | |
4307 | | #endif /* #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) */ |
4308 | | |
4309 | | /* Sets the expected access behavior so the system can optimize the access |
4310 | | * Returns 1 if successful or -1 on error |
4311 | | */ |
4312 | | int libcfile_file_set_access_behavior( |
4313 | | libcfile_file_t *file, |
4314 | | int access_behavior, |
4315 | | libcerror_error_t **error ) |
4316 | 0 | { |
4317 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4318 | 0 | static char *function = "libcfile_file_set_access_behavior"; |
4319 | |
|
4320 | 0 | #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) |
4321 | 0 | int advice = POSIX_FADV_NORMAL; |
4322 | 0 | int result = 0; |
4323 | 0 | #endif |
4324 | |
|
4325 | 0 | if( file == NULL ) |
4326 | 0 | { |
4327 | 0 | libcerror_error_set( |
4328 | 0 | error, |
4329 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4330 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4331 | 0 | "%s: invalid file.", |
4332 | 0 | function ); |
4333 | |
|
4334 | 0 | return( -1 ); |
4335 | 0 | } |
4336 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4337 | |
|
4338 | | #if defined( WINAPI ) |
4339 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
4340 | | { |
4341 | | libcerror_error_set( |
4342 | | error, |
4343 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4344 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4345 | | "%s: invalid file - missing handle.", |
4346 | | function ); |
4347 | | |
4348 | | return( -1 ); |
4349 | | } |
4350 | | #else |
4351 | 0 | if( internal_file->descriptor == -1 ) |
4352 | 0 | { |
4353 | 0 | libcerror_error_set( |
4354 | 0 | error, |
4355 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4356 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4357 | 0 | "%s: invalid file - missing descriptor.", |
4358 | 0 | function ); |
4359 | |
|
4360 | 0 | return( -1 ); |
4361 | 0 | } |
4362 | 0 | #endif |
4363 | 0 | if( ( access_behavior != LIBCFILE_ACCESS_BEHAVIOR_NORMAL ) |
4364 | 0 | && ( access_behavior != LIBCFILE_ACCESS_BEHAVIOR_RANDOM ) |
4365 | 0 | && ( access_behavior != LIBCFILE_ACCESS_BEHAVIOR_SEQUENTIAL ) ) |
4366 | 0 | { |
4367 | 0 | libcerror_error_set( |
4368 | 0 | error, |
4369 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4370 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
4371 | 0 | "%s: unsupported access behavior: %d.", |
4372 | 0 | function, |
4373 | 0 | access_behavior ); |
4374 | |
|
4375 | 0 | return( -1 ); |
4376 | 0 | } |
4377 | 0 | #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) |
4378 | 0 | if( access_behavior == LIBCFILE_ACCESS_BEHAVIOR_NORMAL ) |
4379 | 0 | { |
4380 | 0 | advice = POSIX_FADV_NORMAL; |
4381 | 0 | } |
4382 | 0 | else if( access_behavior == LIBCFILE_ACCESS_BEHAVIOR_RANDOM ) |
4383 | 0 | { |
4384 | 0 | advice = POSIX_FADV_RANDOM; |
4385 | 0 | } |
4386 | 0 | else if( access_behavior == LIBCFILE_ACCESS_BEHAVIOR_SEQUENTIAL ) |
4387 | 0 | { |
4388 | 0 | advice = POSIX_FADV_SEQUENTIAL; |
4389 | 0 | } |
4390 | 0 | result = posix_fadvise( |
4391 | 0 | internal_file->descriptor, |
4392 | 0 | 0, |
4393 | 0 | 0, |
4394 | 0 | advice ); |
4395 | | |
4396 | | /* Safely ignore if the device does not support fadvise. |
4397 | | * Note that FreeBSD 10.0 had a bug and was returning -1 |
4398 | | * and setting errno. |
4399 | | */ |
4400 | 0 | if( ( result != 0 ) |
4401 | 0 | && ( result != ENODEV ) ) |
4402 | 0 | { |
4403 | 0 | libcerror_system_set_error( |
4404 | 0 | error, |
4405 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4406 | 0 | LIBCERROR_IO_ERROR_GENERIC, |
4407 | 0 | errno, |
4408 | 0 | "%s: unable to advice file descriptor on access behavior.", |
4409 | 0 | function ); |
4410 | |
|
4411 | 0 | return( -1 ); |
4412 | 0 | } |
4413 | 0 | #endif /* defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) */ |
4414 | | |
4415 | 0 | return( 1 ); |
4416 | 0 | } |
4417 | | |
4418 | | /* Determines the block size |
4419 | | * Returns the 1 if successful, 0 if not or -1 on error |
4420 | | */ |
4421 | | int libcfile_internal_file_determine_block_size( |
4422 | | libcfile_internal_file_t *internal_file, |
4423 | | libcerror_error_t **error ) |
4424 | 0 | { |
4425 | | #if defined( WINAPI ) |
4426 | | #if ( WINVER >= 0x0600 ) |
4427 | | FILE_ALIGNMENT_INFO file_alignment_information; |
4428 | | #else |
4429 | | DISK_GEOMETRY disk_geometry; |
4430 | | DISK_GEOMETRY_EX disk_geometry_extended; |
4431 | | #endif |
4432 | | #endif /* defined( WINAPI ) */ |
4433 | |
|
4434 | 0 | static char *function = "libcfile_internal_file_get_bytes_per_sector"; |
4435 | |
|
4436 | | #if defined( WINAPI ) |
4437 | | uint32_t bytes_per_sector = 0; |
4438 | | uint32_t error_code = 0; |
4439 | | BOOL result = 0; |
4440 | | |
4441 | | #if ( WINVER < 0x0600 ) |
4442 | | DWORD response_count = 0; |
4443 | | #endif |
4444 | | |
4445 | | #else |
4446 | 0 | #if defined( BLKSSZGET ) || defined( DIOCGSECTORSIZE ) || defined( DKIOCGETBLOCKSIZE ) |
4447 | 0 | ssize_t read_count = 0; |
4448 | 0 | uint32_t error_code = 0; |
4449 | 0 | #endif |
4450 | | #if !defined( BLKSSZGET ) && defined( DIOCGSECTORSIZE ) |
4451 | | u_int bytes_per_sector = 0; |
4452 | | #else |
4453 | 0 | uint32_t bytes_per_sector = 0; |
4454 | 0 | #endif |
4455 | 0 | #endif /* defined( WINAPI ) */ |
4456 | |
|
4457 | 0 | if( internal_file == NULL ) |
4458 | 0 | { |
4459 | 0 | libcerror_error_set( |
4460 | 0 | error, |
4461 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4462 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4463 | 0 | "%s: invalid file.", |
4464 | 0 | function ); |
4465 | |
|
4466 | 0 | return( -1 ); |
4467 | 0 | } |
4468 | | #if defined( WINAPI ) |
4469 | | #if ( WINVER >= 0x0600 ) |
4470 | | result = GetFileInformationByHandleEx( |
4471 | | internal_file->handle, |
4472 | | FileAlignmentInfo, |
4473 | | (void *) &file_alignment_information, |
4474 | | (DWORD) sizeof( FILE_ALIGNMENT_INFO ) ); |
4475 | | |
4476 | | if( result == FALSE ) |
4477 | | { |
4478 | | error_code = (uint32_t) GetLastError(); |
4479 | | |
4480 | | libcerror_system_set_error( |
4481 | | error, |
4482 | | LIBCERROR_ERROR_DOMAIN_IO, |
4483 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4484 | | error_code, |
4485 | | "%s: unable to retrieve file alignment information.", |
4486 | | function ); |
4487 | | |
4488 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4489 | | if( libcnotify_verbose != 0 ) |
4490 | | { |
4491 | | if( ( error != NULL ) |
4492 | | && ( *error != NULL ) ) |
4493 | | { |
4494 | | libcnotify_print_error_backtrace( |
4495 | | *error ); |
4496 | | } |
4497 | | } |
4498 | | #endif |
4499 | | libcerror_error_free( |
4500 | | error ); |
4501 | | } |
4502 | | else |
4503 | | { |
4504 | | if( (size64_t) file_alignment_information.AlignmentRequirement >= (size64_t) UINT32_MAX ) |
4505 | | { |
4506 | | libcerror_error_set( |
4507 | | error, |
4508 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4509 | | LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS, |
4510 | | "%s: invalid file alignment requirement value out of bounds.", |
4511 | | function ); |
4512 | | |
4513 | | return( -1 ); |
4514 | | } |
4515 | | bytes_per_sector = (size_t) file_alignment_information.AlignmentRequirement; |
4516 | | } |
4517 | | #else |
4518 | | result = DeviceIoControl( |
4519 | | internal_file->handle, |
4520 | | IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, |
4521 | | NULL, |
4522 | | 0, |
4523 | | &disk_geometry_extended, |
4524 | | (DWORD) sizeof( DISK_GEOMETRY_EX ), |
4525 | | &response_count, |
4526 | | NULL ); |
4527 | | |
4528 | | if( result == FALSE ) |
4529 | | { |
4530 | | error_code = (uint32_t) GetLastError(); |
4531 | | |
4532 | | if( error_code == ERROR_NOT_SUPPORTED ) |
4533 | | { |
4534 | | } |
4535 | | else if( error_code != ERROR_MORE_DATA ) |
4536 | | { |
4537 | | libcerror_system_set_error( |
4538 | | error, |
4539 | | LIBCERROR_ERROR_DOMAIN_IO, |
4540 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4541 | | error_code, |
4542 | | "%s: unable to query device for: IOCTL_DISK_GET_DRIVE_GEOMETRY_EX.", |
4543 | | function ); |
4544 | | |
4545 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4546 | | if( libcnotify_verbose != 0 ) |
4547 | | { |
4548 | | if( ( error != NULL ) |
4549 | | && ( *error != NULL ) ) |
4550 | | { |
4551 | | libcnotify_print_error_backtrace( |
4552 | | *error ); |
4553 | | } |
4554 | | } |
4555 | | #endif |
4556 | | libcerror_error_free( |
4557 | | error ); |
4558 | | } |
4559 | | else if( response_count < sizeof( DISK_GEOMETRY_EX ) ) |
4560 | | { |
4561 | | libcerror_error_set( |
4562 | | error, |
4563 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4564 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
4565 | | "%s: invalid response count to query: IOCTL_DISK_GET_DRIVE_GEOMETRY_EX value out of bounds.", |
4566 | | function ); |
4567 | | |
4568 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4569 | | if( libcnotify_verbose != 0 ) |
4570 | | { |
4571 | | if( ( error != NULL ) |
4572 | | && ( *error != NULL ) ) |
4573 | | { |
4574 | | libcnotify_print_error_backtrace( |
4575 | | *error ); |
4576 | | } |
4577 | | } |
4578 | | #endif |
4579 | | libcerror_error_free( |
4580 | | error ); |
4581 | | } |
4582 | | else |
4583 | | { |
4584 | | result = TRUE; |
4585 | | } |
4586 | | } |
4587 | | if( result == TRUE ) |
4588 | | { |
4589 | | bytes_per_sector = (uint32_t) disk_geometry_extended.Geometry.BytesPerSector; |
4590 | | } |
4591 | | else if( error_code == ERROR_NOT_SUPPORTED ) |
4592 | | { |
4593 | | /* A floppy device does not support IOCTL_DISK_GET_DRIVE_GEOMETRY_EX |
4594 | | */ |
4595 | | result = DeviceIoControl( |
4596 | | internal_file->handle, |
4597 | | IOCTL_DISK_GET_DRIVE_GEOMETRY, |
4598 | | NULL, |
4599 | | 0, |
4600 | | &disk_geometry, |
4601 | | sizeof( DISK_GEOMETRY ), |
4602 | | &response_count, |
4603 | | NULL ); |
4604 | | |
4605 | | if( result == FALSE ) |
4606 | | { |
4607 | | error_code = (uint32_t) GetLastError(); |
4608 | | |
4609 | | if( error_code != ERROR_MORE_DATA ) |
4610 | | { |
4611 | | libcerror_system_set_error( |
4612 | | error, |
4613 | | LIBCERROR_ERROR_DOMAIN_IO, |
4614 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4615 | | error_code, |
4616 | | "%s: unable to query device for: IOCTL_DISK_GET_DRIVE_GEOMETRY_EX.", |
4617 | | function ); |
4618 | | |
4619 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4620 | | if( libcnotify_verbose != 0 ) |
4621 | | { |
4622 | | if( ( error != NULL ) |
4623 | | && ( *error != NULL ) ) |
4624 | | { |
4625 | | libcnotify_print_error_backtrace( |
4626 | | *error ); |
4627 | | } |
4628 | | } |
4629 | | #endif |
4630 | | libcerror_error_free( |
4631 | | error ); |
4632 | | } |
4633 | | else if( response_count < sizeof( DISK_GEOMETRY ) ) |
4634 | | { |
4635 | | libcerror_error_set( |
4636 | | error, |
4637 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4638 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
4639 | | "%s: invalid response count to query: IOCTL_DISK_GET_DRIVE_GEOMETRY value out of bounds.", |
4640 | | function ); |
4641 | | |
4642 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4643 | | if( libcnotify_verbose != 0 ) |
4644 | | { |
4645 | | if( ( error != NULL ) |
4646 | | && ( *error != NULL ) ) |
4647 | | { |
4648 | | libcnotify_print_error_backtrace( |
4649 | | *error ); |
4650 | | } |
4651 | | } |
4652 | | #endif |
4653 | | libcerror_error_free( |
4654 | | error ); |
4655 | | } |
4656 | | else |
4657 | | { |
4658 | | result = TRUE; |
4659 | | } |
4660 | | } |
4661 | | if( result == TRUE ) |
4662 | | { |
4663 | | bytes_per_sector = (uint32_t) disk_geometry.BytesPerSector; |
4664 | | } |
4665 | | } |
4666 | | #endif /* ( WINVER >= 0x0600 ) */ |
4667 | | |
4668 | | #elif defined( BLKSSZGET ) |
4669 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4670 | 0 | internal_file, |
4671 | 0 | BLKSSZGET, |
4672 | 0 | NULL, |
4673 | 0 | 0, |
4674 | 0 | (uint8_t *) &bytes_per_sector, |
4675 | 0 | 4, |
4676 | 0 | &error_code, |
4677 | 0 | error ); |
4678 | |
|
4679 | 0 | if( read_count == -1 ) |
4680 | 0 | { |
4681 | 0 | libcerror_error_set( |
4682 | 0 | error, |
4683 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4684 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4685 | 0 | "%s: unable to query device for: BLKSSZGET.", |
4686 | 0 | function ); |
4687 | |
|
4688 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4689 | | if( libcnotify_verbose != 0 ) |
4690 | | { |
4691 | | if( ( error != NULL ) |
4692 | | && ( *error != NULL ) ) |
4693 | | { |
4694 | | libcnotify_print_error_backtrace( |
4695 | | *error ); |
4696 | | } |
4697 | | } |
4698 | | #endif |
4699 | 0 | libcerror_error_free( |
4700 | 0 | error ); |
4701 | 0 | } |
4702 | | #elif defined( DIOCGSECTORSIZE ) |
4703 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4704 | | internal_file, |
4705 | | DIOCGSECTORSIZE, |
4706 | | NULL, |
4707 | | 0, |
4708 | | (uint8_t *) &bytes_per_sector, |
4709 | | sizeof( u_int ), |
4710 | | &error_code, |
4711 | | error ); |
4712 | | |
4713 | | if( read_count == -1 ) |
4714 | | { |
4715 | | libcerror_error_set( |
4716 | | error, |
4717 | | LIBCERROR_ERROR_DOMAIN_IO, |
4718 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4719 | | "%s: unable to query device for: DIOCGSECTORSIZE.", |
4720 | | function ); |
4721 | | |
4722 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4723 | | if( libcnotify_verbose != 0 ) |
4724 | | { |
4725 | | if( ( error != NULL ) |
4726 | | && ( *error != NULL ) ) |
4727 | | { |
4728 | | libcnotify_print_error_backtrace( |
4729 | | *error ); |
4730 | | } |
4731 | | } |
4732 | | #endif |
4733 | | libcerror_error_free( |
4734 | | error ); |
4735 | | } |
4736 | | else if( bytes_per_sector > (u_int) UINT32_MAX ) |
4737 | | { |
4738 | | libcerror_error_set( |
4739 | | error, |
4740 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4741 | | LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS, |
4742 | | "%s: invalid bytes per sector value out of bounds.", |
4743 | | function ); |
4744 | | |
4745 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4746 | | if( libcnotify_verbose != 0 ) |
4747 | | { |
4748 | | if( ( error != NULL ) |
4749 | | && ( *error != NULL ) ) |
4750 | | { |
4751 | | libcnotify_print_error_backtrace( |
4752 | | *error ); |
4753 | | } |
4754 | | } |
4755 | | #endif |
4756 | | libcerror_error_free( |
4757 | | error ); |
4758 | | } |
4759 | | #elif defined( DKIOCGETBLOCKSIZE ) |
4760 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4761 | | internal_file, |
4762 | | DKIOCGETBLOCKSIZE, |
4763 | | NULL, |
4764 | | 0, |
4765 | | (uint8_t *) &bytes_per_sector, |
4766 | | 4, |
4767 | | &error_code, |
4768 | | error ); |
4769 | | |
4770 | | if( read_count == -1 ) |
4771 | | { |
4772 | | libcerror_error_set( |
4773 | | error, |
4774 | | LIBCERROR_ERROR_DOMAIN_IO, |
4775 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4776 | | "%s: unable to query device for: DKIOCGETBLOCKSIZE.", |
4777 | | function ); |
4778 | | |
4779 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4780 | | if( libcnotify_verbose != 0 ) |
4781 | | { |
4782 | | if( ( error != NULL ) |
4783 | | && ( *error != NULL ) ) |
4784 | | { |
4785 | | libcnotify_print_error_backtrace( |
4786 | | *error ); |
4787 | | } |
4788 | | } |
4789 | | #endif |
4790 | | libcerror_error_free( |
4791 | | error ); |
4792 | | } |
4793 | | #endif |
4794 | | #if defined( HAVE_DEBUG_OUTPUT ) |
4795 | | if( libcnotify_verbose != 0 ) |
4796 | | { |
4797 | | libcnotify_printf( |
4798 | | "%s: bytes per sector: %" PRIu32 "\n", |
4799 | | function, |
4800 | | bytes_per_sector ); |
4801 | | } |
4802 | | #endif |
4803 | 0 | if( bytes_per_sector != 0 ) |
4804 | 0 | { |
4805 | 0 | if( libcfile_internal_file_set_block_size( |
4806 | 0 | internal_file, |
4807 | 0 | (size_t) bytes_per_sector, |
4808 | 0 | error ) != 1 ) |
4809 | 0 | { |
4810 | 0 | libcerror_error_set( |
4811 | 0 | error, |
4812 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4813 | 0 | LIBCERROR_RUNTIME_ERROR_SET_FAILED, |
4814 | 0 | "%s: unable to set block size.", |
4815 | 0 | function ); |
4816 | |
|
4817 | 0 | return( -1 ); |
4818 | 0 | } |
4819 | 0 | } |
4820 | 0 | return( 1 ); |
4821 | 0 | } |
4822 | | |
4823 | | /* Sets the block size for the read and seek operations |
4824 | | * A block size of 0 represents no block-based operations |
4825 | | * The total size must be a multitude of block size |
4826 | | * Returns 1 if successful or -1 on error |
4827 | | */ |
4828 | | int libcfile_internal_file_set_block_size( |
4829 | | libcfile_internal_file_t *internal_file, |
4830 | | size_t block_size, |
4831 | | libcerror_error_t **error ) |
4832 | 0 | { |
4833 | 0 | static char *function = "libcfile_internal_file_set_block_size"; |
4834 | |
|
4835 | 0 | if( internal_file == NULL ) |
4836 | 0 | { |
4837 | 0 | libcerror_error_set( |
4838 | 0 | error, |
4839 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4840 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4841 | 0 | "%s: invalid file.", |
4842 | 0 | function ); |
4843 | |
|
4844 | 0 | return( -1 ); |
4845 | 0 | } |
4846 | | #if defined( WINAPI ) && ( UINT32_MAX < SSIZE_MAX ) |
4847 | | if( block_size > (size_t) UINT32_MAX ) |
4848 | | #else |
4849 | 0 | if( block_size > (size_t) SSIZE_MAX ) |
4850 | 0 | #endif |
4851 | 0 | { |
4852 | 0 | libcerror_error_set( |
4853 | 0 | error, |
4854 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4855 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4856 | 0 | "%s: invalid block size value exceeds maximum.", |
4857 | 0 | function ); |
4858 | |
|
4859 | 0 | return( -1 ); |
4860 | 0 | } |
4861 | 0 | if( internal_file->block_data != NULL ) |
4862 | 0 | { |
4863 | 0 | if( block_size != internal_file->block_size ) |
4864 | 0 | { |
4865 | 0 | memory_free( |
4866 | 0 | internal_file->block_data ); |
4867 | |
|
4868 | 0 | internal_file->block_data = NULL; |
4869 | 0 | internal_file->block_data_size = 0; |
4870 | 0 | } |
4871 | 0 | } |
4872 | 0 | if( internal_file->block_data == NULL ) |
4873 | 0 | { |
4874 | 0 | if( block_size > 0 ) |
4875 | 0 | { |
4876 | | #if defined( __FreeBSD__ ) || defined( __NetBSD__ ) || defined( __OpenBSD__ ) |
4877 | | if( posix_memalign( |
4878 | | (void **) &( internal_file->block_data ), |
4879 | | block_size, |
4880 | | block_size ) != 0 ) |
4881 | | #else |
4882 | 0 | internal_file->block_data = (uint8_t *) memory_allocate( |
4883 | 0 | block_size ); |
4884 | |
|
4885 | 0 | if( internal_file->block_data == NULL ) |
4886 | 0 | #endif |
4887 | 0 | { |
4888 | 0 | libcerror_error_set( |
4889 | 0 | error, |
4890 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
4891 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
4892 | 0 | "%s: unable to create block data.", |
4893 | 0 | function ); |
4894 | |
|
4895 | 0 | return( -1 ); |
4896 | 0 | } |
4897 | 0 | if( memory_set( |
4898 | 0 | internal_file->block_data, |
4899 | 0 | 0, |
4900 | 0 | block_size ) == NULL ) |
4901 | 0 | { |
4902 | 0 | libcerror_error_set( |
4903 | 0 | error, |
4904 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
4905 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
4906 | 0 | "%s: unable to clear block data.", |
4907 | 0 | function ); |
4908 | |
|
4909 | 0 | return( -1 ); |
4910 | 0 | } |
4911 | 0 | } |
4912 | 0 | internal_file->block_size = block_size; |
4913 | 0 | } |
4914 | 0 | return( 1 ); |
4915 | 0 | } |
4916 | | |
4917 | | /* Sets the block size for the read and seek operations |
4918 | | * A block size of 0 represents no block-based operations |
4919 | | * The total size must be a multitude of block size |
4920 | | * Returns 1 if successful or -1 on error |
4921 | | */ |
4922 | | int libcfile_file_set_block_size( |
4923 | | libcfile_file_t *file, |
4924 | | size_t block_size, |
4925 | | libcerror_error_t **error ) |
4926 | 0 | { |
4927 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4928 | 0 | static char *function = "libcfile_file_set_block_size"; |
4929 | |
|
4930 | 0 | if( file == NULL ) |
4931 | 0 | { |
4932 | 0 | libcerror_error_set( |
4933 | 0 | error, |
4934 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4935 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4936 | 0 | "%s: invalid file.", |
4937 | 0 | function ); |
4938 | |
|
4939 | 0 | return( -1 ); |
4940 | 0 | } |
4941 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4942 | |
|
4943 | 0 | if( ( internal_file->access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
4944 | 0 | { |
4945 | 0 | libcerror_error_set( |
4946 | 0 | error, |
4947 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4948 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
4949 | 0 | "%s: setting block size not supported with write access.", |
4950 | 0 | function ); |
4951 | |
|
4952 | 0 | return( -1 ); |
4953 | 0 | } |
4954 | | #if defined( WINAPI ) |
4955 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
4956 | | { |
4957 | | libcerror_error_set( |
4958 | | error, |
4959 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4960 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4961 | | "%s: invalid file - missing handle.", |
4962 | | function ); |
4963 | | |
4964 | | return( -1 ); |
4965 | | } |
4966 | | #else |
4967 | 0 | if( internal_file->descriptor == -1 ) |
4968 | 0 | { |
4969 | 0 | libcerror_error_set( |
4970 | 0 | error, |
4971 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4972 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4973 | 0 | "%s: invalid file - missing descriptor.", |
4974 | 0 | function ); |
4975 | |
|
4976 | 0 | return( -1 ); |
4977 | 0 | } |
4978 | 0 | #endif |
4979 | | #if defined( WINAPI ) && ( UINT32_MAX < SSIZE_MAX ) |
4980 | | if( block_size > (size_t) UINT32_MAX ) |
4981 | | #else |
4982 | 0 | if( block_size > (size_t) SSIZE_MAX ) |
4983 | 0 | #endif |
4984 | 0 | { |
4985 | 0 | libcerror_error_set( |
4986 | 0 | error, |
4987 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4988 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4989 | 0 | "%s: invalid block size value exceeds maximum.", |
4990 | 0 | function ); |
4991 | |
|
4992 | 0 | return( -1 ); |
4993 | 0 | } |
4994 | 0 | if( ( block_size != 0 ) |
4995 | 0 | && ( ( internal_file->size % block_size ) != 0 ) ) |
4996 | 0 | { |
4997 | 0 | libcerror_error_set( |
4998 | 0 | error, |
4999 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
5000 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
5001 | 0 | "%s: invalid block size value out of bounds.", |
5002 | 0 | function ); |
5003 | |
|
5004 | 0 | return( -1 ); |
5005 | 0 | } |
5006 | 0 | if( libcfile_internal_file_set_block_size( |
5007 | 0 | internal_file, |
5008 | 0 | block_size, |
5009 | 0 | error ) != 1 ) |
5010 | 0 | { |
5011 | 0 | libcerror_error_set( |
5012 | 0 | error, |
5013 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
5014 | 0 | LIBCERROR_RUNTIME_ERROR_SET_FAILED, |
5015 | 0 | "%s: unable to set block size.", |
5016 | 0 | function ); |
5017 | |
|
5018 | 0 | return( -1 ); |
5019 | 0 | } |
5020 | 0 | return( 1 ); |
5021 | 0 | } |
5022 | | |